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 diagram below is an illustration of the urinary…INS 313 Theory Questions: Life Assurance vs.…The stage in the life history of a moth responsible…Which of the following statements about the…The diagram below is an illustration of the urinary…