Question

A man of “A” blood group marries a woman of ”AB” blood group. Which type of progeny would indicate that the man is heterozygous for A?

• A. AB
• B. A
• C. O
• D. B

Answer 1

The correct option is D

B

B blood group in the progeny would indicate that the man is heterozygous for A which would not have been possible had he been homozygous.