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Harry O
Sunday, February 8, 2009, 2:58pm Report to Moderator Report to Moderator

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Hey there........my question is that we are trying to figure out what our dad's blood type is and since i'm type-o and my mom is type-o does that mean 100% that my dad is type- o too or is there any chance he could be type-A ? Is there anyway a recessive gene can overide a dominate one in the ABO.

Thankyou.
harry
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grey rabbit
Sunday, February 8, 2009, 3:03pm Report to Moderator Report to Moderator

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No, and no. My mom is an O and my dad was an A. I'm an A, my sister is an O. I have two girls, one is an A and one is an O, so I am obviously Ao.  If your mom is an O your dad could have been an Oo, Bo or an Ao, but not an AB.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Andrea AWsec
Sunday, February 8, 2009, 7:45pm Report to Moderator Report to Moderator

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Is he still alive? for about 11$ you can get a test and be sure, no more guessing. If the money is an isue see if he will donate blood.

Some test done in a hospital require a blood typing, like Cardiac Catheterizations. If he ever had one he would have been typed the hospital would have his type on file.


MIFHI

"Do not try to satisfy your vanity by teaching a great many things. Awaken people's curiosity. It is enough to open minds; do not overload them." Anatole France

"Healthy people have the least overt symptoms from eating avoid foods." Dr. D'Adamo
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Harry O
Monday, February 9, 2009, 12:43am Report to Moderator Report to Moderator

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Quoted from Andrea AWsec
Is he still alive? for about 11$ you can get a test and be sure, no more guessing. If the money is an isue see if he will donate blood.

Some test done in a hospital require a blood typing, like Cardiac Catheterizations. If he ever had one he would have been typed the hospital would have his type on file.


Yeap he's alive but we don't have a good relationship with him as my parents divorced years back so we were guessing about his blood type as he is so much different than myself and my mom and sister as all 3 of us are type-O but weren't sure about him.

My mom, sister and i are also the classic Geno type ''Hunters'' as us 3 are tall and thin boned and thrive in the heat and sun and we tan easily and never burn and thrive on meats and vege's and we love intense excersise (swimmers). My dad is not very tall and very thick bone and hates the sun and he burns in it and he's always loved grains (cereals) and peanuts and he hated any form of exercise (lived in front of the tv) etc..so we thought he might be a type-A.

Anyway we were just curious about it.
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grey rabbit
Monday, February 9, 2009, 12:47am Report to Moderator Report to Moderator

swamix 47% Teacher-INFP
Kyosha Nim
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He really could be any type except AB. Us A's aint all slackers .


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Andrea AWsec
Monday, February 9, 2009, 12:53am Report to Moderator Report to Moderator

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Maybe he is a B.. because he likes the tele..

I am just being silly .


A picture of him might help.

Does anyone think you can genotype someone froma photo. I think Peter can ? (just like I know he can eat tofu from the sterile white package )..


We know that Oprah is a Gatherer just from how she looks and a few of the people in the Genotype book are typed just from photos because some of them are dead.
So maybe if you have a good photo of him you can see his leg lengths and head shape??






MIFHI

"Do not try to satisfy your vanity by teaching a great many things. Awaken people's curiosity. It is enough to open minds; do not overload them." Anatole France

"Healthy people have the least overt symptoms from eating avoid foods." Dr. D'Adamo
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grey rabbit
Monday, February 9, 2009, 12:58am Report to Moderator Report to Moderator

swamix 47% Teacher-INFP
Kyosha Nim
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P.S. I'm an A and I'm rather tall and thin, like the sun, tan easily (but try not to) love exercise ( When I have work it is outside hiking for eight hours + a day) and I cannot stand the "telly".


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Andrea AWsec
Monday, February 9, 2009, 1:00am Report to Moderator Report to Moderator

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Samy I was talking about the Father .. liking the tele .


B's have this profile from the japanese as being lazy, so  I was poking fun at the B's around here .


MIFHI

"Do not try to satisfy your vanity by teaching a great many things. Awaken people's curiosity. It is enough to open minds; do not overload them." Anatole France

"Healthy people have the least overt symptoms from eating avoid foods." Dr. D'Adamo
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grey rabbit
Monday, February 9, 2009, 1:07am Report to Moderator Report to Moderator

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Kyosha Nim
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Andrea, I'm just bored today so I'm responding to pretty much anything with pretty much nonsense myself. I know it's all in fun! I once tried to peg people as to their blood types= the way they look and it just doesn't work!  


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Harry O
Monday, February 9, 2009, 1:39am Report to Moderator Report to Moderator

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Quoted from grey rabbit
He really could be any type except AB. Us A's aint all slackers .


So he could possibly be an type-A genetically even though i and my sis are type -O's?
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Harry O
Monday, February 9, 2009, 1:40am Report to Moderator Report to Moderator

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Quoted from grey rabbit
P.S. I'm an A and I'm rather tall and thin, like the sun, tan easily (but try not to) love exercise ( When I have work it is outside hiking for eight hours + a day) and I cannot stand the "telly".


.....i guess that theory went to heck about him as an type-A  .

Thanks Samy and Andrea !!
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Lola
Monday, February 9, 2009, 1:44am Report to Moderator Report to Moderator

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I could bet your dad s an O if all of you are Os.


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
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Mrs T O+
Monday, February 9, 2009, 2:14am Report to Moderator Report to Moderator

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Os can get lazy & sedentary, too. So he could be an O who eats the wrong things(grains, peanuts). He also could be an A or B as was shared. Just be glad you are an O & enjoy that red meat!


Interested in nutrition, lactation, religion, politics; love to be around people; talkative, sensitive, goofy; a "fishy Christian" ><>; left-handed; lived on a farm, small town & big city; love BTD/GTD; A staunch La Leche League veteran; b. 10/1947 Check BTD/GTD on facebook!
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grey rabbit
Monday, February 9, 2009, 2:20am Report to Moderator Report to Moderator

swamix 47% Teacher-INFP
Kyosha Nim
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Any blood type can get lazy and eat the wrong foods and after awhile they are so stuck in the avoids they cannot function and they no longer have the ability to hear what their body is telling them it wants.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Ribbit
Monday, February 9, 2009, 3:39pm Report to Moderator Report to Moderator

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I don't know any lazy As, I don't think.  All the As I know work way too hard and struggle with balancing work and rest.  And we feel guilty for not working more, but when we do we're too tired to function, so we have to rest.....


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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Monday, February 9, 2009, 6:01pm Report to Moderator Report to Moderator

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don't underestimate grandma's revenge ...if she was an AB....


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Harry O
Monday, February 9, 2009, 7:31pm Report to Moderator Report to Moderator

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Again let me thank everyone who replied as i appreciate it as i asked a serious question as my family were just trying to figure out what our father's blood type was as we haven't seen him in years.

Secondly i'm not sure where ''lazy'' came from as i never mentioned that at all. My dad  that i remember as a kid/teen worked hard all his life in the motel/hotel management field but he hated exercise of any form and found tranquility watching tv or old black and white movies etc...when he wasn't at work. Where as i and my mom and sister who are type O's thrive on intense exercise as we couldn't sit still long enough to watch tv or movies for hours so it had me thinking about what Dr.D has written in that type-A's prefer tranquility like yoga  etc...as we just thought we'd ask the folks on here.
.
Anyway we were just trying to guess his blood type by going the parameters that D has written about type-A's but we'll probably never know.

Take care.

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Mayflowers
Monday, February 9, 2009, 8:29pm Report to Moderator Report to Moderator
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Quoted from Harry O

My dad is not very tall and very thick bone and hates the sun and he burns in it and he's always loved grains (cereals) and peanuts and he hated any form of exercise (lived in front of the tv) etc..so we thought he might be a type-A.

Sounds like my dad..He was an AB+ He loved peanut butter..(like father like daughter) and didn't ever exercise.. and he sat in front of the tv reading his newspaper all the time.   Except, my dad was tall...6'3"

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Mayflowers
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Quoted from Ribbit
I don't know any lazy As, I don't think.  All the As I know work way too hard and struggle with balancing work and rest.  And we feel guilty for not working more, but when we do we're too tired to function, so we have to rest.....


Here ,Here!  We are hard workers! I have a full time job and my own business..!  
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Andrea AWsec
Monday, February 9, 2009, 8:32pm Report to Moderator Report to Moderator

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Kyosha Nim
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I know that you will leave him as an A but I have an O Gatherer  that is cerebral rather then physical.


On one of our visits with Dr. D.. that is what he called my husband a cerebral O. In other words he was not an excerciser, more of a thinker. He also loves grains, although they are not good for him and peanut butter, it took a long time to convince him not to eat that.



Excercise tolerance is only one piece of the puzzle as is food preference.
No photos of him?


MIFHI

"Do not try to satisfy your vanity by teaching a great many things. Awaken people's curiosity. It is enough to open minds; do not overload them." Anatole France

"Healthy people have the least overt symptoms from eating avoid foods." Dr. D'Adamo
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TJ
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Gatherers are described as "exercise challenged".
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I don't get it, why can't he be an AB?  

If you got your Mom's O, how would that prove anything about what your Dad might be?

I got both My Mom and my Dad's blood type.  But my sister only got my Dad's.  An AB can marry an O and have kids.  I thought it was the offspring either has one or the other, or in my case, both.    


The poster formerly known as "ABNOWAY"

"Finally brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things." - Phillipians 4:8
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Tuesday, February 10, 2009, 3:30am Report to Moderator Report to Moderator

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Sa Bon Nim
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Quoted from JJR
I don't get it, why can't he be an AB?  

If you got your Mom's O, how would that prove anything about what your Dad might be?

    


Since an O is recessive you must receive an O allele from both parents for a child to have an O blood type.

If one parent is an AB that parent cannot contribute an O allele. This makes an O child not possible.

A person that has an O allele and an A allele will be blood type A since A is dominant and O is recessive.

A person that has an O allele and a B allele will be blood type B since B is dominant and O is recessive.





If you know the mother is an O and a child is an O. The father cannot be AB, since an AB father and an O mother can only have children of type A or Type B.


MIfHI                            I follow a SWAMI diet.
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Quoted from Lola
I could bet your dad s an O if all of you are Os.

Why Lola?  Why not an Ao or a Bo?




Eating half and exercising double.
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Quoted from C_Sharp


Since an O is recessive you must receive an O allele from both parents for a child to have an O blood type.

If one parent is an AB that parent cannot contribute an O allele. This makes an O child not possible.

A person that has an O allele and an A allele will be blood type A since A is dominant and O is recessive.

A person that has an O allele and a B allele will be blood type B since B is dominant and O is recessive.





If you know the mother is an O and a child is an O. The father cannot be AB, since an AB father and an O mother can only have children of type A or Type B.


OH!!!!  I didn't know this.  


The poster formerly known as "ABNOWAY"

"Finally brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things." - Phillipians 4:8
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Lola
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cause O is recessive......if all are Os, I d reckon he might be an O as well......As and Bs are dominant.......
what C wrote is pretty accurate.


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
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Paula 0+
Tuesday, February 10, 2009, 9:10pm Report to Moderator Report to Moderator
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Harry,
My dad is an A, my mom is an O+ (hunter I think).  They had 6 of us.  Two brothers are type A, one brother is an O, my sisters and I are all O's.  One of them is O negative.  
I don't know if my brothers are positive or negative.  
I am O+ and my DH is B+
We have 2 O-sons, one B-son, our only daughter is also O+, as is our youngest son.  Just to let you know, I think your dad could be type A.  My type A dad and brothers are less active then the type O brother, he can't sit still.  Not them though.  They also gained weight at middle age, actually we all did, except the type O brother is in the best physical shape, he was a marine for 28 years.....
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grey rabbit
Tuesday, February 10, 2009, 9:48pm Report to Moderator Report to Moderator

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Kyosha Nim
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I really think it is a mistake to try to figure out someone's blood type by their level of activity. Or to try to figure out blood type by the way someone looks, it just doesn't work!


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Ribbit
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Well, the thing about the way they look---certain blood types tend to pack on weight either around the hips or around the belly, one or the other.  If he's obviously got all his weight around his belly, we can guess he's either A or O.  If it's around his hips, we can guess he may be either B or AB----I think I remember that right.  And the stomach acid levels tend to affect the way you act.  Type Os tend to have high stomach acid, which  may lead to an outgoing personality with perhaps a little aggression.  Type As tend to have low stomach acid, leading to perhaps a mellow temperament until aggravated, which causes cortisol levels to rise and stay risen, which makes it appear that we hold grudges.  

Some of this is how my  husband and I type people we hardly know.  Look at body shape and look at temperament.  We're often right.


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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Quoted from C_Sharp


Since an O is recessive you must receive an O allele from both parents for a child to have an O blood type. (Wouldn't that make things easier.)



Oh! (Pun intended.)  Maybe that means we'll never have an O child then.  

Me: A
Dad: A
Mom: O

DH: B
Dad: B
Mom: A

None of our children are getting any O from my husband's side of the family.  


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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Quoted from Ribbit
Well, the thing about the way they look---certain blood types tend to pack on weight either around the hips or around the belly, one or the other.  If he's obviously got all his weight around his belly, we can guess he's either A or O.  If it's around his hips, we can guess he may be either B or AB----I think I remember that right.  And the stomach acid levels tend to affect the way you act.  Type Os tend to have high stomach acid, which  may lead to an outgoing personality with perhaps a little aggression.  Type As tend to have low stomach acid, leading to perhaps a mellow temperament until aggravated, which causes cortisol levels to rise and stay risen, which makes it appear that we hold grudges.  

Some of this is how my  husband and I type people we hardly know.  Look at body shape and look at temperament.  We're often right.


When I had weight on, it was all belly.  And I probably could've been  mistaken for an O AT TIMES.  But actually, I kind of agree with your assessment.  But there are other factors at work.


The poster formerly known as "ABNOWAY"

"Finally brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things." - Phillipians 4:8
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grey rabbit
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Quoted from Ribbit


Oh! (Pun intended.)  Maybe that means we'll never have an O child then.  

Me: A, Dad: A, Mom: O

DH: B, Dad: B, Mom: A

None of our children are getting any O from my husband's side of the family.  


Your mom is Oo, your dad is either an Aa or Ao, either way you are an Ao. Your DH's dad could be Bo and his mom could be Ao which means it is possible for him to be Bo - in fact his mother HAS to be Ao if he is a B and not an AB. So it IS POSSIBLE for you to have an O child.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Jenny
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those people who are still having difficulty in doing intergenerational research on blood types (and that makes a fascinating family tree in itself) could benefit from finding in one or two of the older BTD books the grid pattern with each parent arrayed horizontally and vertically to see how the combinations and possibilities work out in practice. It is easy to forget that even if we are an A or a B we will still have a recessive o, A or B as well. In my case with an o/o father we were able to deduct that our mother was A1/ A2  as their 3 children are all A, and in fact are A1/o and A2/o (blood bank evidence with regard to the A1 and A2).



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Vicki
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I'm working on publishing a movie on this very topic.  Stay tuned - I made a bit of a blunder so it is taking longer than expected!

The movie I made hopefully plays a little slow for you.  I did this to make it easier for people who have never used a Punnett square.

The video is available on YouTube here:  http://www.youtube.com/watch?v=ctkBBcsZ8Rw

Comments:  there is a problem with the cross lines in my table (too light) and the text is too small so take advantage of YouTube's full screen view even though it makes the text more blurry.  I will be publishing the same movie another way eventually.  

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looking good!


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Ribbit
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Quoted from grey rabbit


Your mom is Oo, your dad is either an Aa or Ao, either way you are an Ao. Your DH's dad could be Bo and his mom could be Ao which means it is possible for him to be Bo - in fact his mother HAS to be Ao if he is a B and not an AB. So it IS POSSIBLE for you to have an O child.


Yes, my mom is Oo and my dad is probably Aa.  We think both his parents were As, but we're not positive.  So we can have an O baby since we both have recessive o blood?


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O

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Yes, you may yet end up with all four types in your family  
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Quoted from Ribbit


Yes, my mom is Os and my dad is probably Aa.  We think both his parents were As, but we're not positive.  So we can have an O baby since we both have recessive o blood?


If your DH is a B then he has a recessive o since you have a child that is an A, the baby got the A from you and the recessive o from him. You have a recessive o because your mother was an Oo, you have a child that is a B so that child got the B from your husband and the recessive o from you. That's the way I see it unless some of your children are adopted or are from a different father/mother. Therefore, yes, you could have an O baby because both you and your husband have a recessive o (that is why O's will never disappear, they pop up once in a while because of just this kind of arrangement).P.S. both his parents cannot be Aas if he is a B.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words

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This is interesting!!!  Does that mean that neither of my parents had a recessive O?  


The poster formerly known as "ABNOWAY"

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Quoted from JJR
This is interesting!!!  Does that mean that neither of my parents had a recessive O?  


Not necessarily:
Ao +Bo = AB or Ao or Oo or Bo.
AB +Oo = Ao or Bo.
AB + Bo = Ao or AB or Bo.
Aa +Bb =AB .
AB +AB =Aa or Bb or AB.
Take all the letters and combine them, remembering that O is always recessive and so to be an O you must be a Oo. Anyone that is NOT an AB can carry a recessive o.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

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No, DH's mom is an A and his dad is a B.  It's MY dad's parents who we think were both As.

I'd kind of hoped we'd stop with 3 types---on the other hand, if we end up with a bunch of Explorers, it does make cooking easier.


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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Quoted from Ribbit
No, DH's mom is an A and his dad is a B.  It's MY dad's parents who we think were both As.


It doesn't really matter, as far as your children's blood type goes, what your dad's parents were. I don't know much about B's, but I have two girls, one A and one O. Before I knew anything about the BTD I used to joke that I could fix a balanced meal, fill just one plate, set it in front of one girl and let her eat her fill, then move the same plate to the other girl and both would be satisfied and full. That is just one example of how very different they are(and they are best friends to this day at ages 22 and 25).


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

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Vicki
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Ribbit,  

I'll work on a movie for your situation, too.  I do encourage you to scratch out punnett squares to check it out for yourself.  


        A         O   <-- you

B     AB      BO

B    AB       BO              

50% chance of your child being AB
50% chance of your child being B
0% chance of your child being AB
0% chance of your child being O

In the above example, if your DH were Type B with no O recessive, then you could not have produced the A child together   So the situation must be as listed below:

       A     O <-- you

B    AB  BO

O   AO  OO

25% chance of your child being AB
25% chance of your child being B
25% chance of your child being A
25% chance of your child being O

Each baby has equal opportunity to be any blood type with your pairing!  

  Amazing, eh?
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Vicki
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Here's the possible parings of two A's.....



         A        A

A     AA      AA

A    AA       AA

Can only produce all A children.  

~~~~or~~~~

         A      O

A     AA    AO

A    AA     AO

Can only produce all A children.

~~~~~or~~~~~

        A    O

A     AA   AO

O    AO  OO

75% chance of child being Type A
25% chance of child being Type O



--

Two A's cannot produce B or AB children but can produce Type O children.

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My Sister and brother in law are both A's and have 2 A's and I'm not sure what their third is.  I think they assumed he's an A but now hearing this, I didn't realize this and I don't think they did either.  I guess it's possible for him to be an O.


The poster formerly known as "ABNOWAY"

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Vicki
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Absolutely!

Both my parents are secretors and I am a non-secretor.  25% chance is 1 in 4 - not unlikely at all!

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Captain_Janeway
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My dad is A and my mom is O.  I have three other siblings and there was only one A in the mix when statistically it is a 50/50 probability.

I have a first cousin who is A and her husband is O. They have three kids and none of them are type A.

Both of my parents are Rh+. I am the only Rh- in the family.

Reality does not always follow statistical probability though. In my case only  the Rh blood types have followed probability.

Dr. D. mentions ABO incompatibility between group O women and group A or B spouses of these women. In these cases, according to him there will be an excess of group O offspring. I do not know for sure if that applys in my mothers case or not. She never had a miscarriage and according to my mom she always had very regular cycles and always knew when she was pregnant without even needing a pregnancy test.

I suspect that both of my parents may be non-secretors though. Non-secretor children who are blood groups A or B born to group O mothers are far less likely than secretor children of groups A or B to be born with hemolytic disease of the newborn (HDN) caused by ABO incompatibility between mother and child.


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Vicki
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The stat is the chance for each child - not for the overall family makeup.  Each time I toss a coin, it has a 50% chance of landing heads up and a 50% chance of landing tails up. This does not mean that I'll get exactly 10 heads and exactly 10 tails if I toss the coin 20 times.

Each child has a certain percentage chance of being the outcome blood types.  

Quoted Text
I suspect that both of my parents may be non-secretors though. Non-secretor children who are blood groups A or B born to group O mothers are far less likely than secretor children of groups A or B to be born with hemolytic disease of the newborn (HDN) caused by ABO incompatibility between mother and child.


Interesting.  Do you have a link on this?  I'm a Type A non-secretor born from a Type O secretor mother with a Type A secretor father.  

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Captain_Janeway
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Quoted from Vicki
The stat is the chance for each child - not for the overall family makeup


Exactly, and after teaching this for the past 3 years you would be surprised at the number of students that don't know.


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Quoted from Vicki
Interesting.  Do you have a link on this?  I'm a Type A non-secretor born from a Type O secretor mother with a Type A secretor father.  

I do not have any online links only textbook. Here are some excerpts from Human Blood Cells: Consequences of Genetic Polymorphisms and Variations, ICP Publishers, copyright,2000

Antibodies to ABO in maternal blood are frequently known to cause haemolytic disease of the newborn (HDN), but the disease is often clinically insignificant and does not require medical intervention.11,247,249 The incidence of ABO haemolytic disease  is significantly higher in some racial groups,247,250-252 which may be related in part to environmental factors. The usual causative antibody is anti-A,B present in group O women,253 with other ABO antibodies less frequently involved. The severity of HDN, which depends on both a high level of maternal IgG anti-A,B in the foetus (due to placental transport of IgG and not IgM), and a sufficient level of ABH antigen expression on foetal red cells, is generally unpredictable.256

Secretory ABH substances do not provide protection against ABO haemolytic disease but rather appear to cause it by inducing immunisation of the mother. 248,249



What the authors are saying here is that IgG anti-A,B causes HDN by virtue of being a small molecule that readily crosses the placental barrier. Bodily secretions from a secretor fetus who is group A or group B will provoke the synthesis of IgG anti-A,B by the mother. Non-secretor infants who completely lack ABH substances or that carry miniscule amounts will apparently not provoke this type of immune response in the mother.

Another textbook reference I have basically says the same thing in a different way. According to Neville J. Bryant, An introduction to Immunohematology, Saunders, 1982

IgG anti-A or IgG anti-B is the cause of ABO HDN. "Since there is no association of the disease with infants who are non-secretors, however, either this is not the whole explanation or the amount of substance in the tissues and the trace amounts in the fluids of non-secretor infants are a sufficient protection."

The more recent reference is most likely the more accurate. Antibodies can be eluted from red blood cells and the class determined. The red blood cells from a group A or B infant when crossed over to the maternal circulation are more likely going to be destroyed automatically by the preexisting anti A or anti B antibodies. So it is reasonable to suspect that blood group substances in the body fluids of secretor infants will provoke immunization in the mother.


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Hmm, is this why my type O daughter was jaundiced and my type A daughter was not?


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

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Quoted from grey rabbit
Hmm, is this why my type O daughter was jaundiced and my type A daughter was not?


Not necessarily, in ABO HDN the mother is always blood group O and her infant is always either blood group A or blood group B. In ABO HDN the mother has made IgG antibodies against the A or B antigens on the baby's red blood cells.

Neonatal jaundice can also be caused by the Rhesus antigen which is often much more severe than HDN caused by the ABO system.

Almost any antibody that can be IgG if it illicits a strong enough immune response in the mother can cause HDN. Some examples are anti Kell, anti S, and anti c and anti E both are part of  the Rh system.

The reason why all pregnant women regardless of ABO or Rh should be screened for irregular antibodies is to rule out neonatal jaundice caused by blood group incompatibility. All newborns should have the cord blood panel done before leaving the hospital, but unfortunately this is often not done unless the mom is Rh- or group O. It is ofen not done as part of a cost cutting measure by insurance companies.

I have worked in a very large university hospital blood bank and believe me blood group incompatibility is not as uncommon as they have you to believe. I have seen a very strong direct coombs test in a 2 day old infant in which both mom and baby were both ABO and Rh compatible, yet the offending antibody was part of a different system the S antibody which is part of the MNSs system.

The baby was jaundiced and anemic and required an exchange transfusion in order to raise the hemoglobin level and decrease the serum bilirubin level.

Neonatal jaundice can also be caused by immaturity of the liver.


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maukik
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So, an O and an A have an O child.  That means one parent is Oo and the other is Ao?  Can the A parent be an Ab and produce the O child with the other parent being an Oo?  
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Lola
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that Ab parent you mention can only be an AB.

there is no Ab, but there are Ao.

an A and a B can produce an AB or an Ao or a Bo or an O
if both have a recessive o to give.


hope I didn t confuse you further! lol


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
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C_Sharp
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To go along with what lola said above.

If one parent is AB and the other parent is an O, the children would either be blood type A or B.

The only phenotypes possible are Ao or Bo.


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Quoted from C_Sharp
To go along with what lola said above.

If one parent is AB and the other parent is an O, the children would either be blood type A or B.

The only phenotypes possible are Ao or Bo.


And that is because both A and B are dominant they share equally, one won't give in to the other and they are both dominant over O, that is why to be an O you must be an Oo. Each parent only has one of these letters to give, they cannot give both, they each must give one, so an AB parent and an Oo parent cannot ever produce an Oo child.


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Quoted from C_Sharp
To go along with what lola said above.

If one parent is AB and the other parent is an O, the children would either be blood type A or B.

The only phenotypes possible are Ao or Bo.


It couldn't be an AB?


The poster formerly known as "ABNOWAY"

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Vicki
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ABNoway,

If you draw a punnett square, which is like a multiplication table, then you will see why the pairing of AB and O cannot produce AB children.

Each parent offers ONE gene to their child.  The AB parent can't offer both genes while disallowing the O parent to offer any genes...


          O          O       <- Type O parent

A      AO        AO
                                     Equal chance of Type A or Type B for each child

B      BO        BO


^
|

A
B

P
a
r
e
n
t


While using the Punnett square, it becomes easy to understand.  If you have any questions about the video (I'm still reworking it), let me know.

If you have any questions about Punnett squares - let me know.  You can master this!

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Vicki
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Type O can only be O and O
Type AB can only be A and B

Type A can be either A and A or A and O
Type B can be either B and B or B and O

This is in the video

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maukik
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When I described one parent as "Ab", I was assuming because he (that parent is the father) had an A father and a B mother and is an A for sure, that he would have a small b from the B parent, but that is not necessarily true?  Being from an A parent and a B parent and being an A for sure, he could be an Ao?  How does he get the o?  From way back?  A grand parent?  
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The B trait is not recessive.

If a person has an A allele and a B allele.
Their blood type type is AB, they are not an A blood type with a hidden (or recessive) b trait.

There will not be a small b.

O is recessive so a person with an A blood type can have two A alleles (AA) or one A allele and one o allele (Ao).

Since O is recessive, a person with the B blood type can either have two B alleles(BB) or one B allele and one o allele (Bo).

An A parent with a B parent produce O children like this:


     A     o  

B    AB    Bo

o    Ao    oo


25% chance of Ao and Bo parent having an AB child
25% chance of Ao and Bo parent having a   B child
25% chance of Ao and Bo parent having an  A child
25% chance of Ao and Bo parent having an  O child


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koahiatamadl
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Quoted from maukik
When I described one parent as "Ab", I was assuming because he (that parent is the father) had an A father and a B mother and is an A for sure, that he would have a small b from the B parent, but that is not necessarily true?  Being from an A parent and a B parent and being an A for sure, he could be an Ao?  How does he get the o?  From way back?  A grand parent?  


He can only be an Ao - there is not other option.  Grand parent bloodtype doesn't enter into it at all.  
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or an Aa.....


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koahiatamadl
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Lola, I am showing my ignorance here I guess but please explain - I'm confused   Aa - what's one of them?  Being as A isn't recessive?  
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As and Bs are dominant to Os.

yes could only be an Aa or a Bo....
if Ab as you mentioned, C already pointed it out, can only be an AB.
Since he s an A, can only be Ao or an Aa.


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
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Vicki
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An O gene can "hide" behind an A or B gene.

A and B genes cannot hide at all.

Someone who has O and O genes must be Type O.

Someone who has A and B genes must be Type AB.

Someone who has B and O genes must be Type B.

Someone who has B and B genes must be Type B.

Someone who has A and O genes must be Type A.

Someone who has A and A genes must be Type A.

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I'm trying to figure out why this is so hard to understand. Vicki's video is good, I'd recommend watching it.
Have you ever played the simple card game "war", or rock paper scissors? Let's pretend the cards are As, Bs and Os.
I play an A, you play an O, A wins=Ao,
I play an A, you play an A, tie = Aa
You play a B, I play an O, B wins= Bo
I play a B, you play a B, tie = Bb
I play a B, you play an A we tie =AB
I play an O, you play an O we tie =Oo

The baby gets one and only one "card" from each parent(player)the two "cards" together determine what type baby will be.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Vicki
Sunday, February 15, 2009, 6:53pm Report to Moderator Report to Moderator

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Great analogy

I'm almost done with a greatly improved video!
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JJR
Sunday, February 15, 2009, 8:18pm Report to Moderator Report to Moderator

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Quoted from grey rabbit
I'm trying to figure out why this is so hard to understand. Vicki's video is good, I'd recommend watching it.
Have you ever played the simple card game "war", or rock paper scissors? Let's pretend the cards are As, Bs and Os.
I play an A, you play an O, A wins=Ao,
I play an A, you play an A, tie = Aa
You play a B, I play an O, B wins= Bo
I play a B, you play a B, tie = Bb
I play a B, you play an A we tie =AB
I play an O, you play an O we tie =Oo

The baby gets one and only one "card" from each parent(player)the two "cards" together determine what type baby will be.


I didn't watch the video.  And I'm unedumacated.


The poster formerly known as "ABNOWAY"

"Finally brothers, whatever is true, whatever is honorable, whatever is just, whatever is pure, whatever is lovely, whatever is commendable, if there is any excellence, if there is anything worthy of praise, think about these things." - Phillipians 4:8
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Ribbit
Sunday, February 15, 2009, 10:13pm Report to Moderator Report to Moderator

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Kyosha Nim
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Captain Janeway, I don't know if you remember the polls I took a long time ago on pregnancy sickness, but I had wondered if bloodtype incompatibility was a cause of "morning" sickness, but I couldn't determine anything from all the data shown.  


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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girly
Sunday, February 15, 2009, 11:31pm Report to Moderator Report to Moderator

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Quoted from Amazone I.
don't underestimate grandma's revenge ...if she was an AB....


Hahahahahahahaha...OMG, I just laughed so hard when I read that !!!  Whoohoo.... Don't mess with us, we get mean!!





Mom to 4 B's...living with extreme food allergies to wheat, all dairy, eggs and pineapple !! ( Me, not the kids..)
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Vicki
Monday, February 16, 2009, 3:09am Report to Moderator Report to Moderator

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ABNoWay,

You were just holding out for the new improved video.

Here's the link:

http://www.youtube.com/watch?v=nsHZbgOmVwg

I know everyone has their own timing requirements...use pause, during playback, as needed!  Also consider using full screen mode.  
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Lola
Monday, February 16, 2009, 3:13am Report to Moderator Report to Moderator

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great job Vicki!


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
DNA mt/Haplo H; Y-chrom/J2(M172);ISTJ
The harder you are on yourself, the easier life will be on you!
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grey rabbit
Monday, February 16, 2009, 4:00am Report to Moderator Report to Moderator

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Kyosha Nim
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Quoted from JJR


I didn't watch the video.  And I'm unedumacated.


watch the video!
To take the card analogy a little further---have you played "war" were you divide the deck in two and each player draws one card to challenge the other player?-- you don't get to look at your cards before you play them and you play one at a time. With this game each player is only dealt two cards.
I'm an Ao, so I only have two cards in my pile an A and an o. Baby's father also only has two cards in his pile, an O and an o. We each pull cards from the top of the deck, his is always going to be an O, mine might be an o or it might be an A.If mine is an A and his is an O the baby will be an A-A trumps O every time, BUT if my card is an o and his is also an O then the baby is an Oo.
If I were an AB, then I'm holding nothing but trump. If I play an A and he plays an O then A wins, baby is Ao. If I play a B and he plays an O then baby is a Bo. I can't play both my cards at once, I can only play one so baby cannot be an AB if dad is an O.
Maybe you could even play this game with someone (I'm a visual learner myself). Make up a deck of cards, four As, four Bs, four Os, deal them out face down and play "war", As and Bs are trump and are equal to each other, Os are never trump and don't "win" unless you both play one.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words

Revision History (1 edits)
grey rabbit  -  Monday, February 16, 2009, 1:26pm
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Captain_Janeway
Monday, February 16, 2009, 5:12pm Report to Moderator Report to Moderator

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Quoted Text
Captain Janeway, I don't know if you remember the polls I took a long time ago on pregnancy sickness, but I had wondered if bloodtype incompatibility was a cause of "morning" sickness, but I couldn't determine anything from all the data shown.  


I don't know either. My mom is an O and she was sick nearly the full nine months with us all. I was her only incompatible offspring other than being a non-secretor.


Rh Neg, Le(a+b-), NN, Fy(a-b+)

INTP/INTJ at work
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Ribbit
Tuesday, February 17, 2009, 2:19am Report to Moderator Report to Moderator

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Kyosha Nim
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My mom is an O and was very sick her entire pregnancies.  My sister and I are both type A, but I don't know about my 3 brothers.  They think this diet is so dumb they won't even tell me their bt for reference.


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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grey rabbit
Tuesday, February 17, 2009, 2:35am Report to Moderator Report to Moderator

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My mother is an O and was sick throughout all four pregnancies. My daughter is a type O, 15 weeks along, and she has been sick off and on, some days are better than others. My sister is an O and she was never sick a day of either of her pregnancies. I'm an A and I was off and on, this was pre-BTD days but I have to say the things I didn't want to eat were the "avoids".


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Harry O
Thursday, March 26, 2009, 5:47pm Report to Moderator Report to Moderator

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Quoted from 312
Harry,
My dad is an A, my mom is an O+ (hunter I think).  They had 6 of us.  Two brothers are type A, one brother is an O, my sisters and I are all O's.  One of them is O negative.  
I don't know if my brothers are positive or negative.  
I am O+ and my DH is B+
We have 2 O-sons, one B-son, our only daughter is also O+, as is our youngest son.  Just to let you know, I think your dad could be type A.  My type A dad and brothers are less active then the type O brother, he can't sit still.  Not them though.  They also gained weight at middle age, actually we all did, except the type O brother is in the best physical shape, he was a marine for 28 years.....


Hi Paulam....

Then you've answered my question that it's possible that my dad is blood type A by telling us your own mother is type O and father is type A  and yet you and one of your brothers are type-O.

As for whether O's thrive on intense exercise or A's thrive on traquility or yoga etc.. i hear some on here kinda scoff at that as i then wonder if Dr.D wrong on stating this generality for these blood types as that's what i read in the ER4YT book.

Anyway this was an very educational thread as i had no idea it would be this long with participation and i really enjoyed everyone's answers and participating in it.

harry
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Mayflowers
Thursday, March 26, 2009, 6:41pm Report to Moderator Report to Moderator
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Quoted from Ribbit
Captain Janeway, I don't know if you remember the polls I took a long time ago on pregnancy sickness, but I had wondered if bloodtype incompatibility was a cause of "morning" sickness, but I couldn't determine anything from all the data shown.  

I should ask my sister who didn't have morning sickness what her ex's BT is. I had bad morning sickness until the 4th month. My ex is a B.
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Jane
Thursday, March 26, 2009, 8:59pm Report to Moderator Report to Moderator

Kyosha Nim
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Very interesting thread.  I'm an O- secretor, my ex is AB+, don't know his secretor type.  I remember my pediatrician telling me at one point that sometimes the ABO incompatibility and the RH incompatibility sometimes offset each other.  .  Both my sons are A+, very different body types.  Both were jaundiced and had to be under the billi lights for a few days. I had Rhogam after both deliveries.  My older one is about 6'3" , light brown hair, dark eyes and always been thin.  My younger one was very blond with blue eyes and even taller - about 6'6" or maybe even taller than that and extremely heavy since about 5 years old.  He's 31 next month and just warned by his PCP that his sugar is high 154.  I think it's finally scared him enough that he's gotten serious about what he's eating.  I wish I knew their secretor types but as I've told you before, they think I'm some kind of nut about what I eat.  
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Paula 0+
Thursday, March 26, 2009, 9:41pm Report to Moderator Report to Moderator
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Yes, I like this thread also.  Very interesting info and such.  I always liked to know folks nationalities and general family history.  This is just one more interesting facet.   But the idea of medical conditions and blood typing is exciting since we can have some control
over the development of these conditions; be more proactive.  I like that.
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Lola
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Sa Bon Nim
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hope they follow your footsteps someday.....patience and setting an example is your only choice!


''Just follow the book, don't look for magic fixes to get you off the hook. Do the work.'' Dr.D.'98
DNA mt/Haplo H; Y-chrom/J2(M172);ISTJ
The harder you are on yourself, the easier life will be on you!
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hailstorm
Saturday, March 28, 2009, 9:39pm Report to Moderator Report to Moderator
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I was told by Mother that I am a B- like her and my sister and was told that my dad is an O who has passed away. So i was surprised why my Obyn was not discussing about the rh negative shot because it can be dangerous for any blood type that is negative on the baby witch has an 85% chance of being positive. So i called her inquiring about it and she said that I am A+ and I said it was a mistake and impossible not knowing that each parent has two blood types and can pass on either one the recessive or dominant. I went down to the lab again being over 6 months pregnant to prove that the test results were wrong before leaving a message to my brother to see what blood type is he. He called back that he was an A- proving I could be An A.  Believe it or not I was more shocked because I have leaned towards the rules for the B type for years now and felt my personality went well with the B type Im so like my Mom and vegetarian diet has always been a turn off and when I tried it for relatively weeks and months at a time  I felt quite week. It was like a mid life crisis telling me I'm an A I hate tofu. Even though the test results arent back yet I went out and got Eat right for your Blood type always having skipped the A in paticular since the whole concept was a turn off not that i dont love Follow your Heart one of my favorite restaurants. Now I'm excited once I confirm the second blood test to know what the right foods for me. Because I have had excess mucuss problems most of my life off and on and weight since I've been 18 and energy levels have been consistently sluggish. The challenge will be to get enough calcium and protein for me and my rapidly growing baby with the new diet restrictions. Any suggestions?
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grey rabbit
Sunday, March 29, 2009, 3:23pm Report to Moderator Report to Moderator

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Hi and welcome! I'm not crazy about tofu either, I do have a few ways that I enjoy it. My protein comes from beans and rice and fish. If you are pregnant be sure to find the "eat right for your baby" book as there are a few things different than in ER4YT.

I love Quinoa and black beans together with a little lime juice, great source of protein.

You will get lots of help here on these boards.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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Ribbit
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Hailstorm, welcome to the forums!

I was dairy-free up until a year ago when I discovered to my astonishment that on the GTD I can tolerate it again.  So I had three prior dairy-free pregnancies and nursed the babies successfully.  I got calcium through blackstrap molasses and almonds mostly.  

They say that a tea made from oatstraw is high in calcium also.

I haven't worried about calcium this time around since I've been eating plenty of dairy.


ISTJ, BTD since 5/05.  Battling chronic Lyme disease since ~1985.

"Everything is permissible for me, but not everything is beneficial..."  I Corinthians 6:12

Family: 3 As, 1 B, 1 AB, 1 O
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hailstorm
Sunday, March 29, 2009, 8:37pm Report to Moderator Report to Moderator
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Thank you Samy and Ribbit for the  welcome and suggestions the Quino and black beans and lime sound lovely. I officially went on the A diet yesterday after going on a mid life blood type crisis a B to an A was a real shocker especially honestly I was turned off by A diet and personality.
But the truth will set you free Just from one day my nose isn't is congested and I can breath better. I have had the worst cold for the third week from getting rsv and despite the herbs netipot collidaial silver up my nose avoiding the mucus forming foods I believe will finally get me well. I should look into the Genotype thing just in case I don't want to be on this too long and then have to change again I just want to find whats right for me while Im pregnant and nursing and for a lifetime after that and just stick with what I hope for the first time in my life will work for me.
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hailstorm
Sunday, March 29, 2009, 8:41pm Report to Moderator Report to Moderator
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Could the doctor tell me if Im a secretor or non from taking the blood type test or is there an additional test taken??
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hailstorm
Sunday, March 29, 2009, 8:45pm Report to Moderator Report to Moderator
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I also wonder if you can determine our dominant blood type gene and the recessive since we give two if we have offspring and we get two from our parents right?
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grey rabbit
Sunday, March 29, 2009, 9:04pm Report to Moderator Report to Moderator

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Quoted from 5110
I also wonder if you can determine our dominant blood type gene and the recessive since we give two if we have offspring and we get two from our parents right?


That cannot be determined by a blood test that I am aware of. And yes, we each have two, a dominate and a recessive, and it would only be a guess as to what your recessive is if you are an A. I happen to know that I am Ao because I have an O daughter and that could not happen if I were Aa.


“Tomorrow is the most important thing in life. Comes into us at midnight very clean. It’s perfect when it arrives and it puts itself in our hands. It hopes we’ve learned something from yesterday.”

John Wayne's last words
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C_Sharp
Monday, March 30, 2009, 1:04am Report to Moderator Report to Moderator

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Quoted from 5110
Could the doctor tell me if Im a secretor or non from taking the blood type test or is there an additional test taken??


Normally determined by using a saliva test.

http://www.4yourtype.com/prodinfo.asp?number=TE002

If you prefer blood, a Lewis test can be used.

For info on the deference, see:

http://www.dadamo.com/knowbase/subtype/subtype6.htm



MIfHI                            I follow a SWAMI diet.
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C_Sharp
Monday, March 30, 2009, 2:14am Report to Moderator Report to Moderator

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Quoted from 5110
I also wonder if you can determine our dominant blood type gene and the recessive since we give two if we have offspring and we get two from our parents right?


Normally one just determine the dominant, since this is what is cheap and easy to determine. Also it is what matters most of the time.

A more expensive testing would have to be used to determine the recessive allele.

A blood type O or a blood type AB individual already know their genotype.

People with A or B blood type can usually figure out their genotype by knowing the blood type of children and parents.

For instance if a type A individual has a type O parent or a type O child, their genotype must be Ao.

Also if a type A individual has a type B parent or a type B child, their genotype must be Ao.


MIfHI                            I follow a SWAMI diet.
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Amazone I.
Wednesday, March 16, 2011, 4:23pm Report to Moderator Report to Moderator

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while being an A2B nonnie.... there must be a little o in my genes as well... isn't it

My grandmum of mother's side was an AB
my grandmum of fathers side was an O or perhaps an A...
my mum is an BRh-
my father was an A RH+


and all kiddies are AB Rh +


p.s.

all grandfathers are of unknown bt's   


MIfHI K-174
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