WAEC Biology 2015 Objective — Question 42
Question 42 of 50 from the West African Examinations Council (WAEC) Biology 2015 Objective paper, with the correct answer and a full explanation.
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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?
- A. A
- B. B
- C. ABCorrect
- D. O
Explanation
The father cannot be AB, since a cross involving AB can never yield an offspring with blood group O (AB always contributes either A or B, never O).
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