The goal of the Defense Threat Reduction Agency is to reduce the threat of Weapons of Mass Destruction (WMD) to the United States by either eliminating foreign stockpiles or mitigating their risk to the U.S. and its allies.
Thus, the primary spermatocyte gives rise to two cells, the secondary spermatocytes, and the two secondary spermatocytes by their subdivision produce four spermatozoa. Spermatozoa are the mature male gametes in many sexually reproducing organisms.Thus, spermatogenesis is the male version of gametogenesis. In mammals it occurs in the seminiferous tubules of the male testes in a stepwise fashion.aturation occurs in the epididymis. The location [Testes/Scrotum] is specifically important as the process of spermatogenesis requires a lower temperature to produce viable sperm, specifically 1Â°-8 Â°C lower than normal body temperature of 37 Â°C (98.6 Â°F).
These seminiferous tubules are considered the functional elements of the testes. It is within these tubules that sperm is created. This process is known as spermatogenesis. Sperm is created at a phenomenal speed, the testes can create over a million per day, which rounds out to thousands of sperm per second.