In mammals growing oocytes are surrounded by special nutritive cells called
Follicle cells
Nurse cells
$(a)$ and $(b)$ both
None of the above
Germ cells in mammalian gonads are produced by
The difference between $Spermiogenesis$ and $Spermiation$ is
What is the difference between a primary oocyte and a secondary oocyte ?
Draw a labeled diagram of a section through ovary.
What is the correct sequence of sperm formation?