Which of the following phases in the development of a sperm has no counterpart in the development of an ovum?

The unfertilized egg of a human contains,or when released from the ovary,the human egg contains:

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:

The acrosome of a sperm is derived from which cell organelle?

During the first meiotic division,into what do the primary spermatocytes differentiate?

Capacitation refers to changes in the