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

Status of dehydration, The first step should be to determine the status of ...

The first step should be to determine the status of dehydration. We have already talked about the mild, inoderate and severe dehydration. In mild to moderate cases fluid, electroly

How is heart contraction triggered, How is heart contraction triggered? ...

How is heart contraction triggered? Heart contraction is independent from neuronal stimulus (although it can be modulated by the autonomous nervous system). In the heart there

Explain the position of the endospore, Explain the Position of the endospor...

Explain the Position of the endospore? Endospore cannot be stained by ordinary methods such as simple staining and gram staining because these dyes do not penetrate the wall of

#titleprotozoans, Ask question #Minimum 100 words accwhat is protozoans ep...

Ask question #Minimum 100 words accwhat is protozoans epted#

Define capsule staining (anthony staining method), Define Capsule Staining ...

Define Capsule Staining (Anthony Staining Method)? A rigid, well-organized gelatinous layer called capsule is present outside the cell wall of many bacteria e.g. Streptococus p

Explain the integrity of cells, When lipid is added to a solution of a dete...

When lipid is added to a solution of a detergent in water, the detergent breaks up large globules of the lipid into much smaller globules. What effect do you think a detergent woul

Electrocardiography, ECG: Myocardial ischemia is indicated by T-wave invers...

ECG: Myocardial ischemia is indicated by T-wave inversions. Left ventricular hypertrophy (LVH) criteria: R in aVL >13 mm R voltage in L1+ S III >25 mm S v1 + R v5 or v6

Biophysics, you are setting up a pcr reaction to amplify a 1000 basepair lo...

you are setting up a pcr reaction to amplify a 1000 basepair long dna grament. in your 50 microliter reaction volume you have 100 nanogrM OD RWMPLrw sn QIRH eoufly 50/50 at/gc 100

How two organisms are interdependent, Give an example of how two organisms ...

Give an example of how two organisms are interdependent. Animals generate carbon dioxide and water, which is required by plants. Accept all reasonable answers.

Explain carbonating - method of food preservation, Explain Carbonating - me...

Explain Carbonating - method of food preservation? Carbonated water is the water in which carbon dioxide gas has been dissolved under pressure. By eliminating oxygen, carbonate

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