If a child has an AB blood type, the parents
A)must both have different blood types.
B)must be A and B, but not AB.
C)must both be AB.
D)can be any blood type.
E)can have different blood types, but neither can be blood type O.

Question

Quizplus · Accepted Answer

For a child to have an AB blood type, it means they inherited an A allele from one parent and a B allele from the other. This can only happen if at least one parent has an A allele and the other has a B allele. Therefore, the parents can have different blood types, but neither can be blood type O (which does not have A or B alleles).

If a Child Has an AB Blood Type, the Parents