Where is the $Corpus$ $luteum$ found?

When is the polar body extruded from the oocyte?

What is the process of physiological maturation of spermatozoa in the female reproductive tract,which enables them to fertilize the ovum,called?

In the head of a mature sperm,the cytoplasm is:

What is the process of yolk synthesis called?

What begins to be produced in females at puberty?