In human blood types, Rh positive is a trait that shows simp…
In human blood types, Rh positive is a trait that shows simple dominance over Rh negative. A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Which of the following phenotypes is possible for the father? (Hint: Do not guess! Draw a Punnett square on a piece of scratch paper. You have been given extra time for this problem.)