Where are the sperms produced?

Name a cell that is found arrested in the diplotene stage for months or years. Comment in $2-3$ lines on how it completes its cell cycle.

Ejaculation of human male contains about $200 - 300$ million sperms,of which for normal fertility . . . . . . $\%$ sperms must have normal shape and size and at least . . . . . . $\%$ must show energetic motility.

Which of the following vitamins is essential for gametogenesis?

In a $30$-year-old woman,in what form is the ovum released?

What is the name of the mature ovarian follicle in females?