Q. The sex of a child is determined :

A
at the time of the sperm's entry
B
six to seven weeks after conception
C
at the time of fertilization of the ovum
D
in the third month of pregnancy
Solution:

Sexual differentiation in humans is the process of development of sex differences in humans. It is defined as the development of phenotypic structures consequent to the action of hormones produced following gonadal determination. Sexual differentiation includes development of different genitalia and the internal genital tracts, breasts, body hair, and plays a role in gender identification.

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