Question

At which stage of life does gametogenesis begin in human male and female respectively?

Answer 1

Gametogenesis is the process of formation of gametes. In males, it is known as spermatogenesis. And in females, it is known as oogenesis.

The process of formation of sperm in the seminiferous tubules of the testis of the males starts during the puberty. In males, puberty is the period when reproductive organs become functional. It is triggered by the secretion of the hormone testosterone in the testes. This hormone brings about the maturation of the secondary sex organs and development of the accessory sex characters.

Women attains puberty about the age of 13. And this brings about the menstrual cycle and another accessory secondary character. Oogenesis takes place in the ovary. Unlike sperm formation that starts at puberty, egg formation in females begin before birth but it is completed only after fertilization. All the eggs that are present in the female are developed in the fetal stage only.