Ovulation occurs:

Select the correct pair based on the amount of yolk in the egg.

Acrosome is a part of

In mammals, estrogen is secreted by which part of the Graafian follicle?

State the site of the process of oogenesis.

Given below are two statements :
Statement-$I$ : Each primary oocyte gets surrounded by a layer of granulosa cells and is called a primary follicle.
Statement-$II$ : At puberty,only $60,000-80,000$ primary follicles are left in each ovary.
In the light of the above statements,choose the most appropriate answer from the options given below :