If a woman has blood type O and a man has blood type AB, what is the probability that they will have a child with blood type O?
A) 0
B) 1/16
C) 1/4
D) 1/2
E) 3/4

Question

Quizplus · Accepted Answer

A woman with blood type O can only pass on an O allele, and a man with blood type AB can pass on either an A or a B allele, but not an O allele. Therefore, it is impossible for them to have a child with blood type O, which would require two O alleles.

If a Woman Has Blood Type O and a Man