Predict the possible blood types, or phenotypes, of offspring in which the father has blood type O and the mother has blood type AB.
A) The possible blood types of the offspring are phenotypes A or O only.
B) The possible blood types of the offspring are phenotypes A or B only.
C) The possible blood types of the offspring are phenotypes A, B, AB, or O.
D) The possible blood types of the offspring are phenotypes AB or O only.

Question

Quizplus · Accepted Answer

The father with blood type O can only pass on an O allele, while the mother with blood type AB can pass on either an A or B allele. Therefore, the possible blood types of the offspring are A (AO) or B (BO).

Predict the Possible Blood Types, or Phenotypes, of Offspring in Which