Question

If a child has blood group 'A' and the mother has blood group 'A' then what are the possibilities of blood group of the father?

• A. A
• B. O
• C. B
• D. All of the above.

Answer 1

The correct option is A A

If the child and the mother both have blood group 'A', the father can have the blood groups A($I^A$i), O(ii), or B($I^B$i).