Question

A man has blood group O and his mother blood group A. The genotype of mother should be ________________.

• A. $I^O{I}^O$
• B. $I^A{I}^O$
• C. $I^A{I}^B$
• D. $I^A{I}^A$.

Answer 1

The correct option is B $I^A{I}^O$

The blood group of a man is ‘O’ and his genotype is I^OI^O, and his mother blood group is A and her genotype is I^AI^O.

So, the correct option is ‘I^AI^O’.