At what stage in the life history of a mammal is the sex of an individual set? by Sunday | Sep 8 | Biology JAMB | 0 comments A. at adolescence B. at puberty C. at birth D. at conception Correct Answer: Option D – at conception Users Also Read These:The stage in a product life circle where advertising…Which of the following statements about the…The maintenance of a stable internal environment…Which of the following substances when lost from the…If an individual persists in the use of hard drugs,…