scientistsahai Posted June 14, 2005 Share Posted June 14, 2005 Hey, My blood gp is 'O' and my brothers gp is 'B' and 'AB'. of the basic knowledge of blood gp alleles that I have, we inherit from parents the type of gp that we possess. So accordingly, if I reverse engineer it I find that one of my parents shud hav 'A' and other 'B'. When I enquired i found that my mom is dominant and carries B(hence BB) Thus in that case, with these blood gp's AO x BB | F1 : AB & OB (i.e B) Thus can I conclude that I was one the adopted among all 3 children??? PLease help Link to comment Share on other sites More sharing options...
Skye Posted June 14, 2005 Share Posted June 14, 2005 What do you mean by 'your mom is dominant'? I imagine your mother is IBi and your father is IAi. Link to comment Share on other sites More sharing options...
scientistsahai Posted June 14, 2005 Author Share Posted June 14, 2005 Yep u can say it like that too. We prefer to show dominance of alleles as 'BB'(homozygous and dominance) and 'bb' (homozygous and recessive) and 'Bb' (as the heterozygous and dominant) So my mother is IBIB and father is IAi. Link to comment Share on other sites More sharing options...
Skye Posted June 14, 2005 Share Posted June 14, 2005 Ok, but you still haven't explained why you think your mother has to be homozygous. Link to comment Share on other sites More sharing options...
scientistsahai Posted June 14, 2005 Author Share Posted June 14, 2005 Well I actually found that out from her blood gp. And since one of my brothers has an AB type and me O hence there needs to be a heterozygous father so that both A and O alleles can give an AB. Skye can u please be more elaborate if wanna enquire more ?? Link to comment Share on other sites More sharing options...
Bluenoise Posted June 14, 2005 Share Posted June 14, 2005 Hey' date=' My blood gp is 'O' and my brothers gp is 'B' and 'AB'. [/quote'] You're probably not adopted. Say one parent is OA and the other is OB this gives the possibility of these combinations in their offspring: OO AB OA OB O is recessive so they could have sired children with phenotypes O, AB, A and B So in conclusion without knowing your parents phenotype your siblings could have any blood group. So one of your parents are probably A and the other is B. Link to comment Share on other sites More sharing options...
scientistsahai Posted June 14, 2005 Author Share Posted June 14, 2005 Thanks Blue... Link to comment Share on other sites More sharing options...
Bluenoise Posted June 14, 2005 Share Posted June 14, 2005 When I enquired i found that my mom is dominant and carries B(hence BB) Sorry I missed that. If you find out that your mom is B then that's OB or BB not just BB. Sometimes I miss things... Link to comment Share on other sites More sharing options...
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