A woman who is blood type AB has a child with a man who is blood type O.Which of the following is not a possible blood phenotype for the child produced from this union?
A) AB
B) O
C) A
D) Choice A and Choice B are not possible
E) All of these are possible

Question

Quizplus · Accepted Answer

A person with AB blood type has both A and B alleles, and a person with O blood type has two O alleles. Their child can only inherit an A or B allele from the AB parent and an O allele from the O parent, making blood types A or B possible, but not AB or O.

A Woman Who Is Blood Type AB Has a Child