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WAEC Biology 2009 Objective — Question 52

Question 52 of 60 from the West African Examinations Council (WAEC) Biology 2009 Objective paper, with the correct answer and a full explanation.

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In a family of eight (8), all the children are girls. Which of the following reasons correctly explains this?

  • A. A. The woman cannot produce male children
  • B. B. The man has a low sperm count
  • C. C. The Y component of the man's sex chromosome was always involved
  • D. D. The X component of the man's sex chromosome was always involvedCorrect

Explanation

The reason is that the Y chromosome of the man has never participated (in these conceptions) while the X chromosome was always involved, resulting in only female children.

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