JAMB Biology 2010 Objective — Question 48
Question 48 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2010 Objective paper, with the correct answer and a full explanation.
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At what stage in the life history of a mammal is the sex of an individual set?
- A. At adolescence
- B. At puberty
- C. At birth
- D. At conceptionCorrect
Explanation
The sex of an individual is determined at conception, since you should be able to tell what the correct option is based on which sex chromosome (X or Y) combines at fertilization.
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