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

What is ancylostomiasis, Q. What is ancylostomiasis? The Ancylostomiasi...

Q. What is ancylostomiasis? The Ancylostomiasis is a disease caused by the Necator americanus or Ancylostoma duodenale both hookworms belonging to the nematode phylum (roundwor

Explain some advantages of most probable number, Explain some Advantages of...

Explain some Advantages of Most Probable Number? 1. It is simple and method of choice for determining fecal coliform densities. 2. Results of different laboratories are comp

Define the term parasites, Normal 0 false false false E...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Hormonal control by insulin, Insulin  is  released  into  the  bloodstream ...

Insulin  is  released  into  the  bloodstream by  the  β  cells  of  the  pancreas  when blood glucose stages are high after feeding and stimulates glycogen synthesis to kept exces

State the term autopsy data - brain patient, State the term Autopsy data - ...

State the term Autopsy data - Brain patient Autopsy data are not always entirely usable for validation purposes, in that numerous changes may have taken place in the patient's

Define protein requirements for physical fitness, Define Protein Requiremen...

Define Protein Requirements for physical fitness? Proteins provide energy to the body. Since exercise may increase an athlete's need for protein, depending on the type and freq

How to increase in sodium conductance, How to increase in sodium conductanc...

How to increase in sodium conductance A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is healthy.  At 2 AM, the ph

Theory of embryology - mosaic thoery, MOSAI C THOERY - It was given by...

MOSAI C THOERY - It was given by W. Roux. He studied the development of frog's egg. He destroyed one cells by a hot needle out of 2-cells formed as a result of first cleava

Nonsurgical retreatment -secondary endodontic ttt, Nonsurgical retreatment ...

Nonsurgical retreatment (secondary endodontic ttt ) -Is the main difference between primary endodontic disease versus post treatment disease is the need to Regain access to

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