WAEC - Biology (2024 - No. 42)
A woman with blood group A gives birth to a child with blood group O. Which of the following blood groups cannot belong to the father?
B
A
AB
O
Explanation
A woman with blood group A and a man with blood group AB can never produce a child with blood group O. Blood group A could either be from AA homozygous or AO heterozygous.
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