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

Ideal eia and measures and benefits of eia, An ideal EIA system would: ...

An ideal EIA system would: (i)     Apply to all projects that are expected to have significant environmental effects and address all impacts that are expected to occur due to t

Proteins of animal origin - egg, Proteins of Animal Origin - Egg Eggs: ...

Proteins of Animal Origin - Egg Eggs:  Roughly, the chicken egg consists of 11% shell, 31% yolk and 58% white. Liquid whole egg consists of 65% white and 35% yolk. The primary

Cultural and religious values, Wildlife has influenced language, art, relig...

Wildlife has influenced language, art, religion and social customs of many societies worldwide, and wild animals figure prominently in many cultures even today. In all cultures of

Glomerular filtrate, Normal 0 false false false EN-IN ...

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

Which of substance are microfilaments, Q. Which Of substance are microfilam...

Q. Which Of substance are microfilaments made and what are the properties of these elements that give motility to cells? Microfilaments are made of actin a protein. The contrac

Describe gastrovascular cavity in detail, Describe Gastrovascular cavity in...

Describe Gastrovascular cavity in detail? The name given to the internal cavity of cnidarians. A blind-ended (incomplete) gut with only one opening. Food is to be digested and

Scrapie, Scrapie This is a chronic fatal disease of sheep and occasiona...

Scrapie This is a chronic fatal disease of sheep and occasionally of goats caused by a Prion agent similar to BSE. The disease is reported from Europe, North America and in a f

Handling animals in lab, Handling : The desire for survival is same whethe...

Handling : The desire for survival is same whether in animals or human beings. You may be aware of the ability of even tiny animals to scratch and bite. So we won't say any more o

What is hazard identification, What is Hazard Identification Hazard  I...

What is Hazard Identification Hazard  Identification :  The  identification  of  known  or potential  health effects associated with  a  certain  agent.

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