The production of mature spermatozoa from spermatogonia:

Ans. B. Takes 70 daysIt takes approximately 65 to 70 days to develop spermatozoa from the earliest stages of spermatogonia. Because the production of sperm depends on LH and FSH, a lack of GnRH (Kallmann's syndrome) will reduce the production of LH, FSH, and sperm. Temperature is important in regulating sperm production. Optimal sperm production occurs at 2 to 3_C lower than body temperature.