Question

A man of blood group O marries a woman of blood group-$AB$, which type of progeny would indicate that man is homozygous ?

• A. $O$
• B. A or B
• C. $A$
• D. $AB$

Answer 1

Answer: (B)

A or B

	A	B
O	AO	BO
O	AO	BO

If a man is homozygous for the blood group O i.e., genotype will be OO and he marries a female with blood group AB. Then the offspring will have blood group A, B according to the punnet square. Thus, the correct answer is option B.