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:Which of the following depicts the external features…An arthropod that is destructive at early stage of…INS 313 Theory Questions: Life Assurance vs.…If an individual persists in the use of hard drugs,…The diagram below is an illustration of the urinary…