Question

If father has blood group A (heterozygous) and mother has blood group B (homozygous), these blood groups are not expected in their children

• A. AB, O
• B. AB, B
• C. A, O
• D. B, O

Hint:

Use Punnett square to check all possible genotype combinations of offspring.

Answer 1

The Correct Option is C

Father's genotype is \( I^A I^O \) and mother's genotype is \( I^B I^B \). 
The possible offspring genotypes from a cross would be \( I^A I^B \) (AB) and \( I^B I^O \) (B). 
Therefore, blood groups A and O are not possible.