Assertion : Head of sperm consists of acrosome and mitochondria.

Reason : Acrosome contains spiral row of mitochondria.

What is spermatogenesis? Briefly describe the process of spermatogenesis.

Name the hormones involved in regulation of spermatogenesis.

Given below are two statements :

Statement $I$ :

The release of sperms into the seminiferous tubules

is called spermiation.

Statement $II$ :

Spermiogenesis is the process of formation of sperms from spermatogonia.

In the light of the above statements, choose the most appropriate answer from the options given below:

How many ova and sperms would be produced from $100$ secondary oocytes and $100$ secondary spermatocytes during gametogenesis in human