Question

a man with blood group A marries a woman having blood group AB . which of the following types in progeny of this couple would show that the man is heterozygous?
a.Type A
b.Type O
c.Type AB
d.Type B​

Answer 1

Answer:

option D. Type B

Explanation:

if the man is supposed to be heterozygous, his genotype will be AO

and given female genotype is AB

therefore, genotype of F1 progeny will be :

AA, AB, AO, BO

hence possible blood group: A,B& AB.

Therefore presence of blood group B in F1 generation shows he is Heterozygous.