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

Proestrus - estrous cycle, Proestrus - Estrous cycle This precedes the...

Proestrus - Estrous cycle This precedes the next heat and is characterised by functional involution of the corpora lutea and preovulatory swelling of the follicles. Fluid coll

Explain the importance of parent material, Explain the importance of parent...

Explain the importance of parent material Part of  these weathered minerals are transported  away by volcanoes, wind, water, ice, and waves etc. These very factors transport th

Beta decay, Beta decay  is the type of radioactive decay in which the radio...

Beta decay  is the type of radioactive decay in which the radioisotope emits a little negatively-charged and fast-moving particle from its nucleus. A beta particle is almost simila

How do you prevent food borne infection, How do you prevent food borne infe...

How do you prevent food borne infection? Prevention of Food borne infections: Avoid consumption of contaminated foods and water Eat properly cooked foods Wash

Diversity, WHAT IS PANDA BAO BAOLOGY.?

WHAT IS PANDA BAO BAOLOGY.?

Biology - a science of exception, BIOLOGY - A SCIENCE OF EXCEPTION - So...

BIOLOGY - A SCIENCE OF EXCEPTION - Some common examples to prove it are - 1.       Embryos of dicot plants have 2 cotyledons but in cuscuta (Dodder plant or amer bel or Aka

Explain the working of human visual system, Q. Which is the part of the hum...

Q. Which is the part of the human visual system where the receptors that sense light, i.e., the photoreceptor cells, are located? How do those cells work? The photoreceptor cel

Revenue recognition on long-term construction projects, Q. Revenue Recognit...

Q. Revenue Recognition on Long-term Construction Projects? Revenue Recognition on Long-term Construction Projects Company identifies revenue from a long-term construction proje

Differences between budding and fission, Differences between Budding and Fi...

Differences between Budding and Fission Both budding and fission are identical in at least one way in that the young ones produced by these procedures are the result of direct

Chemical properties of fatty acids, Chemical Properties of Fatty Acids ...

Chemical Properties of Fatty Acids Esterification Like any other organic acid,  fatty acids also form esters with  various alcohols. An alcohol such as glycerol is reacted

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