Gametogenesis and Fertilization | Animals
In this article we will discuss about the process of gametogenesis and fertilization in animals, explained with the help of suitable diagrams. Spermatogenesis: 1. It occurs in the testes. The walls of the seminiferous tubules of vertebrates contain primordial germ cells. 2. The primordial germ cells begin to enlarge with increased metabolism and undergo mitotic division, and produce spermatogonia. 3. [...]