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 the role of radiographic evaluation, What is the role of radiograph...

What is the role of radiographic evaluation in implant treatment? Radiographic examination is very different with implants than with teeth. Radiographs are frequently used in i

Genital warts and human papillomavirus infection, Genital warts and human p...

Genital warts and human papillomavirus (hpv) infection External genital warts are caused by human papillo- mavirus, usually type 6 or 11; other types (16, 18 and others) cause

What are the gynoecium and the androecium, Q. What are the gynoecium and th...

Q. What are the gynoecium and the androecium? What are the other structures of flowers? Androecium is set of male reproductive structures of flowers it comprehends the stamens

Define effect of deficiency of chromiumin humans, Define Effect of Deficien...

Define Effect of Deficiency of chromiumin humans? Hallmark of marginal chromium deficiency is impaired glucose tolerance. Individuals receiving TPN without chromium have been s

Describe the functional problems of implant failures, Functional Problems o...

Functional Problems of implant failures The masticatory efficiency of the implant supported prosthesis depends on the anchorage related factors and the prosthesis related fact

Prolactin, assignment on prolactin

assignment on prolactin

Food pyramid concept, Dietary counseling based on the food pyramid concept ...

Dietary counseling based on the food pyramid concept and the food to target concept will be quite useful in the management of the disease. The optimal age for discontinuing the

Cooking of vitamin c-containing foods, Q. Why isn't the cooking of vitamin ...

Q. Why isn't the cooking of vitamin C-containing foods appropriate for vitamin C supply? To obtain vitamin C, for instance, from an orange dessert, the vitamin- containing food

Nature of disease, Q. Nature of disease? Education is very important fo...

Q. Nature of disease? Education is very important for diabetics because it is a lifelong disorder. In order to enable the patient to lead a healthy and a good quality Life free

Skeleton, what are the biological significance of skeleton

what are the biological significance of skeleton

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