question_answer

A man of 'A' blood group marries a woman of 'AB' blood group, which type of progeny would indicate that man is heterozygous?

A)  O                                           

B)  B

C)  A                           

D)  AB

Correct Answer: B

Solution :

In this case progeny with blood group B is produced only when man is heterozygous, ie, 1A1o.