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BIOLOGY

JAMB 2014 - Question 43

Biology 2014 JAMB Past Questions - Question 43: A couple has 10 children, all female. Which of the following best explains the situation?

Choose the most appropriate option for the gap .

A couple has 10 children, all female. Which of the following best explains the situation?

A: The sex determination was by the mans X chromosome.

B: The mans sperm count is low.

C: The woman is not capable of producing male children.

D: The sex determination was by the mans Y chromosome

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Correct Answer

Explanation

The sex of the ten children were determined by the man's X sex chromosome. This implies that the sperms that fertilized the ten eggs that produce the ten girls carried X sex chromosomes.