The cleavage having incomplete division of egg is known as

In spermatogenesis, at the end of the first meiotic division . . . . . . are formed.

The undifferentiated primordial germ cells are larger in size and their chromatin-rich nuclei are distinct in:

The schematic representation of spermatogenesis is given below. How many chromosomes do $P$,$Q$,and $R$ contain?
$P$ (Spermatogonia) $\rightarrow$ $Q$ (Primary Spermatocyte) $\rightarrow$ $R$ (Spermatid)

Which endocrine structure is formed after ovulation?

Gametogenesis is the formation of