What is spermatogenesis? Briefly describe the process of spermatogenesis.

(N/A) Spermatogenesis is the process of the production of sperms from the immature germ cells in males. It takes place in the seminiferous tubules present inside the testes.
During spermatogenesis,a diploid spermatogonium (male germ cell) increases in size to form a diploid primary spermatocyte.
This diploid primary spermatocyte undergoes the first meiotic division (meiosis $I$),which is a reductional division,to form two equal haploid secondary spermatocytes.
Each secondary spermatocyte then undergoes the second meiotic division (meiosis $II$) to form two equal haploid spermatids.
Hence,a single diploid spermatogonium produces four haploid spermatids.
These spermatids are transformed into spermatozoa (sperm) by a process called spermiogenesis.