What is spermatogenesis? Briefly describe the process of spermatogenesis.
Spermatogenesis is the process of the production of sperms from the immature germ cells in males. It takes place in seminiferous tubules present inside the testes. During spermatogenesis, a diploid spermatogonium (male germ cell increases its size to form a diploid primary spermatocyte. This diploid primary spermatocyte undergoes first meiotic division (meiosis $I$) which is a reductional division to form two equal haploid secondary spermatocytes. Each secondary spermatocyte then undergoes second meiotic division (meiosis $II$) to form two equal haploid spermatids. Hence, a diploid spermatogonium produces four haploid spermatids. These sper atids are transformed into spermatozoa (sperm) by the process called spermiogenesis. (figure)
In testis, the immature germ cells produce sperm by $...A...$ at puberty $...B...$ present on the inside wall of seminiferous tubules multiply by$ ...C..$. division and increase their number. Identify $A$,$B$ and $C$ from the above statement
Sperms formed from $4$ primary spermatocytes are
Meiotic division during oogenesis is different from that in spermatogenesis. Explain how and why ?
The function of mitochondria in sperm is
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is