<prompt> Fathers blood group is A mothers blood group is AB Which of the following blood group is not possible in any of their child?ABABO  <response>: Ans. is d i.e.,OBlood group inheritance by phenotypeBlood group ParentsOABABOOO or AO or BA or BAO or AO or AO, A, B, or ABA,B orABBO or BO, A, B or ABO or BA, B or ABABA or BA, B or ABA, BorABA, B or AB 