Question

The children of a father with type O blood and mother with type AB blood could have the blood type

• A. 'O' type
• B. 'AB' type
• C. 'O' or 'AB' type
• D. 'A' or 'B' type

Answer 1

The correct option is D 'A' or 'B' type

Blood type is an example of a common multiple allele trait. There are 3 different alleles for blood type, (A, B, & O) where in A and B both are dominant over O and also A & B are codominant as well.

If a children having father of 'O' blood group (ii) marries with female having AB blood group (I${}^A$I${}^B$), children blood group could be:

i x I${}^A$ = I${}^A$i (A blood group) or i x I${}^B$ = I${}^B$i (B blood group). Thus, the correct answer is option D.