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

Define requirements of carbohydrates during surgery, Define Requirements of...

Define Requirements of Carbohydrates during Surgery? Carbohydrates: Carbohydrates are needed to build up glycogen stores and spare the proteins for tissue synthesis, Around GO%

What are the use of a barrier membrane is grafting procedure, What are the ...

What are the uses of a barrier membrane is grafting procedures? Uses of barrier membrane in grafting procedures : i) Help in stabilizing the graft ii) Prevents ingrowth

Phenotypic classes, 1. A pure-breeding black, smooth guinea pig was mated t...

1. A pure-breeding black, smooth guinea pig was mated to a pure-breeding white, rough female. They produced several litters, and eventually, five males and twenty females resulted

Matter of gene control and imprinting, Differentiation is largely a matter ...

Differentiation is largely a matter of gene control and imprinting (CH3) plays a role, but ___ may also play a role.

Evolutionary implications of natural regulation, Evolutionary Implications ...

Evolutionary Implications of Natural Regulation Many changes in abundance can be attributed to changes in extrinsic factors such as weather, disease or predation. But some cha

Locomotion in protozoa, give a detail account of modes of locomotion in pro...

give a detail account of modes of locomotion in protozoa

Non - pharmacological management, Great importance is being given to life s...

Great importance is being given to life style modifications because of definite benefits observed in patients who follow this. Life style changes have advantages not only in the co

Technological level - pollution control, Technological level - Pollution co...

Technological level - Pollution control Air pollution can be reduced by using bag filters, electrostatic precipitators and cyclone separators that separate large and small par

Why the ph of urine can be quite variable, The ph of urine can be quite var...

The ph of urine can be quite variable. Why? Why is bromothymol blue used as a ph indicator instead of phenal red when titrating blood?

Difficulty of establishing collaborations - infuse biology, Explain the Dif...

Explain the Difficulty of establishing and sustaining collaborations? Working with another is both rewarding and challenging. Working across disciplines is even more so. Though

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