Remember Blood type alleles show Codominance. A woman with Type AO blood has a child with Type OO blood. She claims that a man with Type BO blood is the biological father. Is this possible that he is the father? Explain your answer.
Yes, it is possible that he is the father. A female with AO and a male with BO would be able to produce all of the blood types. AB, AO, BO and OO.