At which stage of life the oogenesis process is initiated?
Embryonic development stage
Birth
Aufult
Puberty
Acrosome is a part of
When male ejaculates sperms during coitus of which for normal fertility at least....... percent sperms must have normal shape and size and at least ...........per cent of them must show vigorous motility
Sperms formed from $4$ primary spermatocytes are
The immatured stage eggs are called as
The secondary spermatocytes undergo the second meiotic division to produce four equal,