If a child has blood type O, he or she could not have been produced by which set of parents?
A)type A mother and type B father
B)type A mother and type O father
C)type AB mother and type O father
D)type O mother and type O father
E)type O mother and type B father

Question

Quizplus · Accepted Answer

A child with blood type O can only inherit an O allele from both parents, so the parents in option C (type AB mother and type O father) cannot produce a child with blood type O because the mother must pass down either an A or a B allele to the child.

If a Child Has Blood Type O, He or She