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 nutritional requirements for young and older children, Define Nutrit...

Define Nutritional requirements for Young and Older Children? Young children need 3 en%, which would be easily met from 8-10 g of oil. However, more visible oil is needed to im

Muscle, In a word, what process provides the energy for muscle contraction

In a word, what process provides the energy for muscle contraction

Transmissible gastroenteritis of swine, Transmissible gastroenteritis of sw...

Transmissible gastroenteritis of swine The disease, first reported from the USA in 1964, is caused by antigenic group 1 mamalian coronavirus, a member of genus Coronavirus of

Phylum , what are diploblastic organisms?

what are diploblastic organisms?

Show water permeability of the luminal membranes, Healthy Person H takes a ...

Healthy Person H takes a new drug named ANTICAMPCOLLDUCT that blocks the production of cyclic AMP (cAMP) in collecting duct epithelial cells in response to vasopressin binding to V

Poultry and duck diseases-duck plague, Duck plague Duck plague, caused ...

Duck plague Duck plague, caused by a member of Herpesviridae, has world wide distribution and occurs among domestic and wild ducks, geese, swans and waterfowls. Epidemiolo

Illustrate the major cells of the nervous system, Q. Illustrate the major c...

Q. Illustrate the major cells of the nervous system? The major cells of the nervous system are the neurons. as well the neurons the nervous system is also constituted of glial

Theophrastus of eresus, The Father of Botany (370-285 B.C.); of all the men...

The Father of Botany (370-285 B.C.); of all the men who ever lived upon the earth certainly one of the most remarkable was Theophrastus of Eresus who was born about 370 B.C. on the

Define the agarose gel electrophoresis (age), Define the Agarose gel electr...

Define the Agarose gel electrophoresis (AGE)? This technique is used to analyze serum proteins, haemoglobin variants, lactate dehydrogenase isoenzymes, lipoprotein fractions an

Explain about the spinal trauma, Explain about the Spinal Trauma? Spina...

Explain about the Spinal Trauma? Spinal trauma or spinal cord injury, commonly clue to accidents, fills, sports injury can result in serious disabling consequences. The spinal

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