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can O and A  have O child  This thread currently has 3,522 views. Print Print Thread
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Mrs T O+
Friday, February 29, 2008, 2:01am Report to Moderator Report to Moderator

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Kyosha Nim
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It's possible that someone was typed incorrectly. There's talk of mistakes in typing in the military. Were any of the men veterans?
Maybe even Baby A was mistyped...
S S & L,
Mrs "T"     O+  


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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accidental_chef
Friday, February 29, 2008, 3:31am Report to Moderator Report to Moderator

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Ee Dan
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Quoted from Leanne
OK, I have a senario and I want to know if it's possible.
Parents of father:
Dad - B
Mom - A
Parents of mother:
Dad - O
Mom - B

The parents:
Mother - O
Father - B

Here are their childern's blood types:
#1 child - B
#2 child - O
#3 child - A

Now, is that last A child possible or was their hanky-panky going on?  The only A factor in all of this is the mother of the father.  Could he be a BA and have passed that A on to his child?
Very curious about this!

Leanne!


In ERFYT Dr D talks about "revenge of the grandma" where a grandchild takes up the blood type of the grandma. And this situation that seems to be the case.



BTD compliance means: Definition of "Compliance"

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Vicki
Friday, February 29, 2008, 4:43am Report to Moderator Report to Moderator

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Sun Beh Nim
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accidental_chef, that's only possible when an O gene re-appears.  A and B cannot be recessive and are always expressed.

Mistyping (of parent or child), adoption, etc are all possible.

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Leanne
Friday, February 29, 2008, 4:16pm Report to Moderator Report to Moderator

Hunter
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I was present at the birth and typed the baby myself.  I also typed the father several years ago.  The mother has her type on hospital records.  

Leanne!


My husband Daniel A+ Teacher, me O+ Hunter, DJ O+ Hunter, Abiail O+ Gatherer, Nathaniel O+ Hunter, Israel A+ Teacher, Esther O+ Gatherer, Levi O+ Hunter.
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Vicki
Sunday, March 2, 2008, 2:00am Report to Moderator Report to Moderator

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Sun Beh Nim
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There are rare cases where a mother has two types of DNA in her body.  This is called chimera.  Otherwise, there is a different father, mistyped mother, etc.

Here's one example:  http://news.bbc.co.uk/2/hi/health/3264467.stm

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Lola
Sunday, March 2, 2008, 2:37am Report to Moderator Report to Moderator

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Sa Bon Nim
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fascinating!


''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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The harder you are on yourself, the easier life will be on you!
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Melissa_J
Sunday, March 2, 2008, 6:52pm Report to Moderator Report to Moderator

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You also need to confirm the blood types of the parents, as sometimes memory is faulty or tests need to be re-done.

My sister's husband thought he was an A, until they typed their son out to be a B, (she's an O), and he admitted that the hospital told him his blood type after giving him morphine, so he could have remembered it wrong.  Their son is definitely his, so similar they could be twins if they were the same age.  

My college genetics teacher stopped handing out PTC test strips after uncovering an adoption where the child (now adult) had not been told he was adopted.


Type O+ blogger, secretor afterall. Gluten intolerant. With two gluten intolerant sons:  A+ Secretor 10 yo (also fructose intolerant and slightly egg allergic), and  O- 7yo.
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jls91978
Sunday, March 2, 2008, 10:18pm Report to Moderator Report to Moderator
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Ok. Here's how it goes. Every person has two alleles for blood type. Let's just liken an allele to an ingredient that makes up the trait. In order to have a dominant trait only one parent has to pass a dominent allele. In order to have a recessive trait both parents must pass both recessive alleles. For instance A and B are dominant and O is recessive. Therefore if one parent passes the child an A and the other parent passes an O then the child has AO and A type blood since the A is dominant. If both parents pas A the child will have AA and will also have A type blood. The difference between the two though is that the child with AO has the potential to pass the O to the child (is a carrier) while the AA can only pass A. Since a parent with O type blood needs both alleles to get a recessive trait, the parent will be OO and will only have O to pass. So if you are AO and your husband is O type blood your child will be either OO (O type blood) or AO (A type blood but a carrier for O). If your blood is AA your child will have AO and have A type blood and be a carrier for O.
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Leanne
Monday, March 3, 2008, 3:59am Report to Moderator Report to Moderator

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So is that the same for someone who is a type B?  Could they be a "carrier" of an A if their mother was an A?


My husband Daniel A+ Teacher, me O+ Hunter, DJ O+ Hunter, Abiail O+ Gatherer, Nathaniel O+ Hunter, Israel A+ Teacher, Esther O+ Gatherer, Levi O+ Hunter.
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Lola
Monday, March 3, 2008, 8:11am Report to Moderator Report to Moderator

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Sa Bon Nim
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yes


''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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Mrs T O+
Monday, March 3, 2008, 1:40pm Report to Moderator Report to Moderator

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Kyosha Nim
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Re Melissa's comments: Many folks just don't remember their type. It isn't important to them. To some, their whole body is unimportant, while most of us here think it is extremely important. After all, we live in it!!!!
A friend who caught the early stage of thyroid cancer, commented that she didn't pay attention to her body. (I'm so thankful they caught it & I hope she now pays attention! Sadly her sister is fighting some kind of abdominal cancer!)

When I found out my type in high school, I was disappointed (not now!), but I sure didn't forget it. How can anyone forget something like that. But they do!!!!
To me, it's simple to figure out the types a child could have, but to others it is a big mystery. But becuase there is a lot of 'cheating' going on, there may be a child that doesn't match the parents' types. However, there are also errors in typing, forgetfulness, etc., so we shouldn't jump to conclusions.  
Don't we just love this BTD lifestyle! Who else can talk about blood types so much!?
Mrs "T"  O+  


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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jls91978
Thursday, March 6, 2008, 7:09am Report to Moderator Report to Moderator
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To answer Leanne's question, both A and B are dominant genes. If one parent gives you A and the other gives you B since both are dominant, you will be AB.
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Henriette Bsec
Thursday, March 6, 2008, 9:52am Report to Moderator Report to Moderator

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Kyosha Nim
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Quoted from EquiPro
That teacher knew nothing, since ABO bloodtypes are some of the most basic science.

Here's how it works.  In our bloodtype there are 3 letters: A, B, and O (I know, it's not really "letters", but I'm keeping it simple).  Everyone gets 2 of these letters to make their bloodtype.  A and B are always expressed, but O is not.  Think of O as "zero".

So, you can be the following:

AA or AO = Type A bloodtype
BB or BO = Type B bloodtype
AB = AB bloodtype
OO = O bloodtype

Notice that AB and O bloodtypes have only ONE WAY for them to be that bloodtype, whereas A bloodtype and B bloodtype have TWO ways to be that bloodtype.

OK.

When 2 people get together to have a baby, EACH one of them contributes ONE of their own bloodtype letters to make the baby.  Remember, they have TWO letters, but they give ONE only to the baby.

So the following can happen:

If you are bloodtype AA, which is the A Bloodtype, you will ONLY contribute an A to the baby.

If you are bloodtype AO, which is also the A bloodtype, you can give the baby EITHER an A letter OR and O letter.

If you are bloodtype BB, which is the B bloodtype, you can give the baby ONLY a B letter.

If you are bloodtype BO, which is also the B bloodtype, you can give the baby EITHER a B letter OR an O letter.

If you are bloodtype AB, which is the only form of the AB bloodtype, you can give the baby EITHER an A letter OR a B letter.

If you are bloodtype OO, which is the ONLY form of the O bloodtype, you can ONLY give the baby the letter O.

SO

you can see how two people with bloodtype A could produce a baby with bloodtype O.  In that case, BOTH parents would have to be the AO bloodtype AND the bloodtype of the baby could be either AA, AO, or OO.  Overall, that baby would have a 75% chance of being an A bloodtype.

Your typical test for determining bloodtype does not tell you which two letters you have.  You are told you are "Type A", but you don't know if you are an AA or an AO.  You can most easily figure this out if you know your parent's bloodtype, your children's bloodtype and your mates bloodtype.  If all the adults are type A, but an O child pops out here and there, you know that someone in the family is an AO type A.

I hope that this is clear.

BTW, the only combo that most certainly CANNOT result in a type O child is if BOTH parents are AB.


I think this is VERY good explanation
- my daughter in 8th grade  had just made a huge biology report  about this
where they made eldon cards etc...
What I think is a real issue is that some fathers are actually NOT the fathers and that gives a problematic result.. as well as wrong military reports !
My dad was tested in military and they said he was B rh+
so there was a lot of issues when my mum got pregnant - she is O rh-  
and it turned out that he had been mistyped :
he was actually AB rh- so there was no problems with the preganancies that resulted in 2
B rh- girls.
I had forgotten all about grandmothers revenge when I got pregnant with an A
- so I thought= AB child - but no she is an O negative child...



ENFP -naturalist, visual/spatial and musical/verbal/chatty Dane- Mother to DD Emma age 19,
0 rh- secr ( Hunter or Explorer )
Diamonds, superfoods, Neutral,*black dots, avoids
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Vicki
Saturday, March 8, 2008, 6:15am Report to Moderator Report to Moderator

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Sun Beh Nim
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I need to make a movie explaining this...it is a very easy concept to grasp...but difficult to describe without a bit of animation

I'll see if I can do this within a week...stay tuned!

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Lola
Sunday, March 9, 2008, 2:06am Report to Moderator Report to Moderator

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Sa Bon Nim
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I love movies!


''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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Shamrockgreen7
Tuesday, August 26, 2008, 7:11pm Report to Moderator Report to Moderator

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Where is the movie?
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Lola
Tuesday, August 26, 2008, 7:23pm Report to Moderator Report to Moderator

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Sa Bon Nim
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you need to pm Vicky, and ask her if she did do the movie, cause I haven t heard anything yet!


''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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Amazone I.
Wednesday, August 27, 2008, 4:20pm Report to Moderator Report to Moderator

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Kyosha Nim
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Grandma's revenge....


she was an AB+.....
dad was an A+...mum is still the BRh-
bothe kiddies became AB Rh+.....

btw.
I do have clients;she is an A+ and he is an O; both kiddies are
O's!!!


MIfHI K-174
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Melissa_J
Wednesday, August 27, 2008, 4:24pm Report to Moderator Report to Moderator

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Sa Bon Nim
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http://www.biology.arizona.edu/Human_Bio/problem_sets/blood_types/inherited.html

Here's a calculator where you put in both parent's types and get possible types for the child, or one parent and a child to get possible types for the other parent.

Any parent can have an O, except for ABs, because AB's definitely have no O allele.  A + A can = O, as they can both be Ao.  Same for A+B, B+B, A+O and B+O...all can produce an O.  The only way parents can be sure of what they'll get is if they're both Os...they can only get Os.  If my A son marries an A and they have an O child, I guess that would be Grandma's revenge too because half of her O-ness would have come from me.  (I'd hope the little O is nice and stubborn too, and that she wakes them up at night...ah, revenge!  Of course I'd happily come over and watch her so they could nap)


Type O+ blogger, secretor afterall. Gluten intolerant. With two gluten intolerant sons:  A+ Secretor 10 yo (also fructose intolerant and slightly egg allergic), and  O- 7yo.

Revision History (2 edits)
Melissa_J  -  Wednesday, August 27, 2008, 4:53pm
Melissa_J  -  Wednesday, August 27, 2008, 4:52pm
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Jane
Wednesday, August 27, 2008, 4:48pm Report to Moderator Report to Moderator

Kyosha Nim
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My Dad was an O and my Mom's an A and both my brother and I are Os.  I'm the only O- in the group but my uncle and a bunch of my mother's cousins are all O-.
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Ribbit
Thursday, August 28, 2008, 1:18am Report to Moderator Report to Moderator

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Kyosha Nim
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Quoted from Melissa_J
  (I'd hope the little O is nice and stubborn too, and that she wakes them up at night...ah, revenge!  Of course I'd happily come over and watch her so they could nap)


*lol!*  What a good grandmother you will be!


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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Amazone I.
Thursday, August 28, 2008, 5:50am Report to Moderator Report to Moderator

Rh+ GT 4...E/..INTJ ....prop.=non-taster..
Kyosha Nim
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that's what I'm going to say, too Melissa


MIfHI K-174
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azredhead57
Wednesday, September 17, 2008, 8:07pm Report to Moderator Report to Moderator

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This all reminds me of an eye color argument I had with my sisters a few years ago  


~Victoria~
...Do not be discouraged; everyone who got where he is, started where he was.--anon
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Melissa_J
Thursday, September 18, 2008, 7:00am Report to Moderator Report to Moderator

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Sa Bon Nim
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Is it similar to the phone call the genetics professor's secretary got at my college?

Sec:  Hello?
Woman: My son and his wife both have green eyes, but their child has brown eyes.  That's not possible if it's his child, right?
Sec: Well, that is a bit odd
Woman:  (shocked)I knew it!

She left no number to call back on, and the secretary was no genetic counselor, just a student in a different major.  Some woman out there hung up thinking her daughter in law was fooling around.  Of course, the genetics professor could have offered other explanations, as it's all more complicated than Mendel's garden peas.

My oldest son has dark brown eyes, his father has greenish eyes and I have blueish eyes.  He's definitely his son, and wasn't switched at birth as our recognition of each other was instant and unchangable.  I still don't know the full explanation, other than that multiple genes are involved, but I like his explanation as to why he has dark hair and eyes but little brother is blue-eyed and blondish...he was born first and took all the color


Type O+ blogger, secretor afterall. Gluten intolerant. With two gluten intolerant sons:  A+ Secretor 10 yo (also fructose intolerant and slightly egg allergic), and  O- 7yo.
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Lola
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Sa Bon Nim
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both my parents have dark brown eyes if not actually black...
all 4 siblings have dark eyes, and I supposedly was switched at birth or got both grandma and pa s revenge!! I ll take the later explanation, I think! lol
mine are greenish blue.....well you know Melissa, you met me last year and I don t wear contacts!


''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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