Testosterone is produced in Leydig cells in fetus due to

Testosterone is the principal male sex hormone (androgen) that is produced by Leydig&;s cells of the testes in response to luteinizing hormone secreted by the pituitary gland. It is also produced by the adrenal coex in both males and females. Its chief function is to stimulate the development of the male reproductive organs, including the prostate, and the secondary sexcharacters, such as the beard. It encourages growth of bone and muscle and helps maintain muscle strength.Ref: Ganong&;s review of medical physiology;24th edition; page no:-423