Transgenetic organisms

Автор работы: Пользователь скрыл имя, 14 Февраля 2016 в 09:11, реферат

Описание работы

Gametogenesis describes the formation of both the male and female gametes, spermatogenesis is the production of sperm in the male testes and oogenesis is the production of ova within the ovaries.
Spermatogenesis and oogenesis depend on mitosis and meiosis.

Содержание работы

Plan:
Introduction.
Gametogenesis
Mitosis
Miosis

Main body

1. Spermatogenesis
1) Spermatogonial phase (mitosis)
Spermatocyte phase (meiosis)
Spermatid phase (spermiogensis or sperm maturation).

Hormonal Control of Spermatogenesis
Spermatozoon
Oogenesis
Hormonal Control of Oogenesis


Conclusion
1.Significance of Oogenesis:
2.Significance of Spermatogenesis