Secondary oocyte is ..........

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is

Androgen stimulates the $...A...$ $FSH$ acts on the $...B...$ and stimulates factors for spermiogenesis. Here $A$ and $B$ refers to

In mature oocytes,cortical granules are formed on which side of the plasmalemma?

Explain the difference between the following terms:
$(1)$ Spermatid - Spermatozoa
$(2)$ First polar body - Second polar body

What is the number of chromosomes in a secondary oocyte?