At which stage of life the oogenesis process is initiated?
Embryonic development stage
Birth
Aufult
Puberty
Germ cells in mammalian gonads are produced by
How many spermatozoa are formed from one secondary spermatocyte ?
$A$ : In spermatogenesis, the first haploid forms are spermatids.
$R$ : All the end of meiosis cells have haploid set of chromosomes.
What is gametogenesis ? Explain.
What is the correct sequence of sperm formation?