Question

a child believes that he is the long-lost son of a very wealthy couple. his blood type is O. his mothers blood type is type A and his fathers is type B. could he be their son? use data from a punnett square to support your answer.

Answer 1

Yes, a mother with blood type A and a father with blood type B can give birth to a son with blood type O.

Answer 2

Yes one A and one B can make an O