Process of spermatogenesis is under the regulatory influence of
Oxytocin
Vassopressin
Follicle stimulating hormone
Luteotrophic hormone
Secondary oocyte is ..........
Ovum is
$A$ - Acrosome possesses mitochondria.
$R$ -Middle piece of sperm is filled with enzymes
In human females, meiosis-$II$ is not completed until
The difference between $Spermiogenesis$ and $Spermiation$ is