HUMAN LIFE CYCLE

Human Life Cycle

Difference between Spermatogenesis and Oogenesis

Spermatogenesis

Oogenesis

Starts producing from the period of puberty and remains usually till male's death or any other acute problem.

The production phase is when the female is still a fetus. At the time of birth the total no of female eggs can be calculated.

Four sperms are formed from a single spermatocyte.

Only a single ovum is formed from a single oocyte.

The process of spermatogenesis occurs in the testes.

The process of oogenesis occurs in the cells of germinal epithelium of the ovary.

A primary spermatocyte divides into two equal secondary spermatocytes.

A primary oocyte divides into ...