The cavity present in the graafian follicle is
Amniotic cavity
Archenteron
Antrum
Ostium
What is the difference between a primary oocyte and a secondary oocyte ?
The secondary spermatocytes undergo the second meiotic division to produce four equal,
Draw a labeled diagram of sperm.
$A$ : Middle piece of sperm is called powerhouse.
$R$ : It contains mitochondria.
Secondary oocyte is ..........