🤓 Based on our data, we think this question is relevant for Professor Wiles' class at SU.
A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh positive is a trait that shows simple dominance over Rh negative and is designated by the alleles R and r, respectively.
Which of the following is a possible phenotype for the father?
a. O negative
b. A negative
c. B positive
d. AB negative