Question

A child of a mother with blood group A and a father with blood group AB may have any one of the following blood groups except

• A. A
• B. B
• C. AB
• D. O

Answer 1

The correct option is D O

Genotype of mother with blood group A - IA i or IA IA
Genotype of father with blood group AB - IA IB.
O blood group will not be seen in offsprings because the genotype is 'ii', which is never possible from the combinations of the given genotypes.