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

Response to heavy metal stress, Response to Heavy Metal Stress Severa...

Response to Heavy Metal Stress Several heavy metals emanating from industrial mining and sewage disposal operations contaminate the environment. Cadmium is a common contamina

What is genes duplication, What is genes Duplication ? Duplication of g...

What is genes Duplication ? Duplication of genes can happen when a portion of a chromosome breaks off and attaches itself to the end of its homologous chromosome, as seen below

Criteria for implant success as given by albrektsson, Q. Show the Criteria ...

Q. Show the Criteria for Implant Success as given by Albrektsson? Criteria for Implant Success as given by Albrektsson are: 1. An individual unattached implant is immobile w

How does plasma membrane regulate, How does a plasma membrane regulate move...

How does a plasma membrane regulate movement of molecules into and out of a cell?

Growth phase -stages in spermatogenesis, Growth Phase -Stages in spermatoge...

Growth Phase -Stages in spermatogenesis Growth phase is characterized by the acquisition of the structural and functional characteristics of distinct sex cells. Also here is a

Define hexokinase, Hexokinase, that catalyzes the first irreversible step o...

Hexokinase, that catalyzes the first irreversible step of glycolysis, is inhibited by glucose 6-phosphate.   Thus  when  PFK  is  inhibited and  fructose  6-phosphate builds  up an

How fever, How Fever,Illness,Infections,Injury affects the BMR? Any ill...

How Fever,Illness,Infections,Injury affects the BMR? Any illness or fever caused by an illness influences the metabolic rate. Fevers increase the metabolic rate by about 7% for

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