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BTD Forums  /  Live Right 4 Your Type  /  Sibling blood types Help
Posted by: carreral4, Tuesday, October 1, 2013, 8:59am
Hi guys i have just been reading an old thread where someone has mentioned blood types and family having different blood groups.

Mods i expect this is in the wrong place so appologies firstly.

I have a question. Yesterday i checked with my Little sister re blood types as i was looking into this diet, she couldnt remember what hers was only that its different to mine and my eldest sisters which are both NH NEGATIVE 0. As you can imagine it was alittle upsetting for me to read her reply. As follows.


ME
morning hows you? do you know what your blood type is? im rhesus negative type O which is rare btw x
.

30/09/2013 10:15




MY SISTER



I know, your the same as denise then, quite cleary not my full blood sisters then!! hmmmm!!! knew it!!! xxx
.

...


MY REPLY


what are you?
.


just because we have the 0 it doenst eman were not full sisters atal, its dna that would tell by alot more than blood group.
you may have dads blood group and we carry mums
. or vice versa"



MY SISTER



im not the rhsis but ill need to check, yeah shes intolerant to white bread rice etc too xx
.

...








30/09/2013 12:58




MY REPLY



As a Blood Type O you may be predisposed to certain illnesses, such as ulcers and thyroid disorders.
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30/09/2013 13:00




MY REPLY



http://www.4yourtype.com/TypeO_basic.asp read all this, see if u think this is like Denise if so mail it to her she may find something useful here.
.






D'Adamo Personalized Nutrition: Blood Type O
http://www.4yourtype.com
Nutritional supplements, test kits and educational materials based on the principles of Eat Right For Your Type® and the The Blood Type Diet® as outlined by The New York Times best-selling author Dr. Peter D'Adamo.






Surely siblings can have both the same parents and different blood groups right?
Would appreciate any thoughts on this, its really made me feel bad for asking her as she feels left out now.
Posted by: ruthiegirl, Tuesday, October 1, 2013, 12:38pm; Reply: 1
Yes, siblings can have different blood types.

Everybody has 2 blood type alleles. If you get two "O" alleles, you're blood type O. If you get one A and one B, then you're AB. If you get one A and one O, or if you get two As, you're an A. If you get one B and one O, or two Bs, you're a B.  There's no easy way to know if an A is an "AA" or an "AO", nor is it easy to know if you're a "BB" or a "BO" if you're a B. The blood test will just show "A" or "B".

Since you're an O, it means that you got one O allele from each parent. That can happen if both your parents are Os, or if one parent is O and one is AO, or one is O and one is BO, or if one is BO and one is AO, or if  both are AO or if both are BO.

Since you have a sibling who isn't an O, then at least one of your parents must be an AO or a BO. You could even have a full sibling who's an AB if your parents are OA and OB.
Posted by: chrissyA, Tuesday, October 1, 2013, 3:38pm; Reply: 2
Genetics are funny that way. I'm A+, Bro1 is O+, Bro 2 is 0-
Posted by: Henriette Bsec, Tuesday, October 1, 2013, 6:57pm; Reply: 3
My father was the sole AB, He had 2 A brothers and one B brother :)

My X boyfriend was A and I am B and we made a O daughter- really we could have made ANY BT child since we have O mothers  ;)
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