Question

"Gopalan argues that if father is of 'A' blood group, mother is of 'B' blood group. Their children can only be 'A' group, B group or 'AB' group".
a) Do you agree with Gopalan's argument?
b) Give reason for your answer.

Answer 1

a) No, Gopalan's argument is not correct because their children can have A, B, AB or O blood group.

b) The genotype of the father will be I${}^A$I${}^A$ or I${}^A$i and that of the mother will be I${}^B$I${}^B$ or I${}^B$i.

Hence the genotype of the child can be

1. I${}^A$I${}^B$ (Blood group AB) or

2. I${}^A$i (Blood group A)

3. I${}^B$i (Blood group B)

4. ii (Blood group O)