Question Detail
Question
Which combination of blood groups of a couple will produce children with all possible ABO blood groups? A. AB and A B. A and B C. AB and O D. B and O
Correct Answer
Option B is the correct answer.
Detailed Explanation
A cross between a heterozygous A (I^A i) and a heterozygous B (I^B i) can produce offspring with all four blood types: I^A i (A), I^B i (B), I^A I^B (AB), and i i (O).
Hint
Both parents need to be heterozygous for the O allele.