Oogenesis, Biology

Assignment Help:

Oogenesis

Oogenesis is the formation of ovum from oogonial cells that are formed in the ovary from primordial germ cells. And as in spermatogenesis it involves meiosis to produce haploid ovum. You have learnt in the section on spermatogenesis that the differentiation of sperm occurs after the meiotic events. In oogenesis the process of first meiotic division is very prolonged; and it is during this process that growth and differentiation of oocyte take place. In many animals most events related to oocyte differentiation occur during prophase I of first meiotic division. In animals which produce yolk-laden eggs, this phase is divided into

  • Previtellogenesis (before yolk production)
  • Vitellogenesis (yolk deposition)
  • Post Vitellogenesis (after yolk deposition)

Related Discussions:- Oogenesis

Introduction to metabolism, Introduction to Metabolism An organism have...

Introduction to Metabolism An organism have to be managed its cellular organization and internal equilibrium despite the external forces which act upon it. Cells take in nutrie

Animal cells, how to explain the structure and function of the organelle

how to explain the structure and function of the organelle

What is the type of meiosis that occurs in pteridophytes, How are gametes f...

How are gametes formed in the pteridophyte life cycle, by mitosis or meiosis? What is the type of meiosis that occurs in pteridophytes? In pteridophytes gametes are made by mit

Pneumonia, P n e u mo n i a It is inflammation of pulmonary pare...

P n e u mo n i a It is inflammation of pulmonary parenchyma, usually accompanied by inflammation of bronchioles, and is characterized by cough, increased respiratory rat

Lipids, LIPIDS Term given by Bloor. Lipids do not form polymers ...

LIPIDS Term given by Bloor. Lipids do not form polymers in nature except cutin (polymere of fatty acids). Most lipids are formed of fatty acids & alcohol. Ester bo

Skeletal muscle need an antagonistic partner, Why does each skeletal muscle...

Why does each skeletal muscle need an antagonistic partner? Because muscles can only contract and relax, each skeletal muscle requires an antagonistic partner to extend it afte

Explain the life cycle of nitrogen, Explain the life cycle of Nitrogen ? ...

Explain the life cycle of Nitrogen ? Nitrogen cycle: Along with carbon, hydrogen, and oxygen, nitrogen is one of the most common elements that form biological molecules. Nitr

Define nutritional management of eating disorders, Define Nutritional Manag...

Define Nutritional Management of Eating Disorders? In the last unit, we focused on weight management. It is important to understand that the problems associated with too much d

Respiratory insufficiency and respiratory failure, Respiratory Insufficienc...

Respiratory Insufficiency Respiratory insufficiency usually indicate inadequate exchange of oxygen and carbondioxide to meet the needs of the body during normal activities.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd