If my dad has the AB blood group, my mom has the O blood group. What blood group will I be? A, B or AB?

1 Answer

A or B

Explanation:

If someone with AB (alleles iA and iB) has children with someone with O blood type (alleles i and i), 50% of the children will be A, 50% of the children will be B.

As the person with the O blood type can only pass on the i gene, the children's blood type depends on the other parent.

If the other parent (the biological father) passes on the iA gene, then the child will have A blood type (iA and iB are dominant over i). On the other hand, if the biological father passes on the iB gene, the child will have B blood type.

Actually the offspring will carry O but will express A or B. You have to take the recessive in to account when determining the blood type of your offspring.

genetics.utah.edugenetics.utah.edu