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

Recognize the eight stages of meiosis, Can you recognize the eight stages o...

Can you recognize the eight stages of meiosis based on the location and behavior of the chromosomes? Drag the diagrams of the stages of meiosis onto the targets so that the four st

Precursors for gluconeogenesis, Glycerol can act as a substrate for glucose...

Glycerol can act as a substrate for glucose synthesis by conversion to dihydroxyacetone phosphate and an intermediate in gluconeogenesis.  In  order  for citric  acid  cycle pyruva

What are organelles, What are organelles, which carry out autophagy? Au...

What are organelles, which carry out autophagy? Autophagy, being the degradation of cytoplasmic components as well as other organelles, is usually done with the lysosomes. The

Name some standard activation energy, The standard free energy change and s...

The standard free energy change and standard activation energy for four biochemical reactions are listed in the table below: A few interpretations are given below. Between thes

Illustrate the major events of the final mitotic period, Q. What are the ma...

Q. What are the major events of the final mitotic period? The final mitotic phase is the telophase. In the telophase the following events occur decondensation of chromosomes ea

Explain about insulin concentrations, Insulin Concentrations The doctor...

Insulin Concentrations The doctor always prescribes insulin dosage in units. Thus all types of insulin (crystalline, NPH, Lente, and so forth) is available in 10-ml vials that

What is micrographia?, Micrographia is abnormally small, cramped handwritin...

Micrographia is abnormally small, cramped handwriting and/or the progression to continually smaller handwriting. This is one of the symptoms of Parkinson''s disease.

Heart - investigation of hypertension, The complications that occur in the ...

The complications that occur in the heart due to hypertension are left ventricular hypertrophy, diastolic dysfunction and cardiac failure. There is also associated coronary artery

Urgency, Overcoming these difficulties is urgent. New instrumentation and ...

Overcoming these difficulties is urgent. New instrumentation and measurement process, coupled with a developing computational infrastructure, give both a flood of data and the pro

Determine about the scales developed by golden, Determine about the scales ...

Determine about the scales developed by golden Several other scales have been developed by Golden and various collaborators, all of which are based on different ways of scoring

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