WAEC Biology 2015 Objective — Question 40
Question 40 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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Which of the following statements about human blood groups is not true?
- A. A is dominant over BCorrect
- B. O is recessive
- C. B is dominant over O
- D. A and B are co-dominant
Explanation
Neither A nor B is dominant over the other (they are co-dominant); this is why blood group AB exists. O is recessive (OA=A, OB=B).
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