A member asked:

Is it posible that no one among the parents will match the bloodtype of his child?

A doctor has provided 1 answer

Please see below.: Everybody has 2 genes for major blood type, so (for instance) someone who is type A could be AA or AO (the O is silent). So if one parent is A and the other is B, the child could be A, B, AB, or O! If both parents are O, though, that means that they're both OO because O is recessive. If their baby isn't type O, then we have a problem!

Answered 2/14/2015

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