🤓 Based on our data, we think this question is relevant for Professor Senseman's class at UTSA.
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 genotype for the son with respect to the A-B-O blood group? (IA= the "A" allele, as if the "I" had a superscript "A"; same for the "IB" allele)