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WAEC Biology 2013 Objective — Question 53

Question 53 of 60 from the West African Examinations Council (WAEC) Biology 2013 Objective paper, with the correct answer and a full explanation.

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If a boy has blood type O and his mother has blood type A. what is the genotype of his father?

  • A. BB
  • B. AA
  • C. AO
  • D. ABCorrect

Explanation

If a boy has blood type O and his mother has blood type A(AO), the blood type of the father is either AO or O(OO).

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