Vitellogenesis, Biology

Assignment Help:

Vitellogenesis

Vitellogenesis is the stage where much of the oocyte growth occurs. The completion of second maturation division (meiosis), which may occur after ovulation, results in ripe egg or ovum. In some species such as sea urchins and frogs, the female produces hundreds or thousands of eggs at a time where as in most mammals including humans only a few eggs are produced in the entire lifetime of the individual. In this section we shall discuss oogenesis in two groups of animals,

 (1) The amphibians as an example of organisms which produce yolky eggs and

 (2) Mammals, as an example of organisms whose eggs do not contain any yolk.


Related Discussions:- Vitellogenesis

Discuss the role of nadph in erythrocytes, Discuss the role of NADPH in ery...

Discuss the role of NADPH in erythrocytes The fragility of erythrocytes  is impaired in the absence of NADPH generation due to the deficiency of glucose-6-phosphate dehydrogena

Fertilisation, Explain how the uterus supports the development of a baby du...

Explain how the uterus supports the development of a baby during gestation

Selection of foods for diabetic patients, Q. Selection of foods for diabeti...

Q. Selection of foods for diabetic patients? Some handy guidelines for selection of foods for diabetic patients is presented next. You may be aware that some foods need to be

What is difficult breathing, What is difficult breathing? Difficult Bre...

What is difficult breathing? Difficult Breathing: Tachypnea (respiratory rates consistently more than 451 min), is a characteristic manifestation of heart failure in newborns (

In unilocular ovary with a single ovule the placentation, In unilocular ova...

In unilocular ovary with a single ovule the placentation is : 1. Marginal 2. Basal 3. Free Central 4. Axile Basal

Can you illustrate chylomicrons, Q. What is the special route that lipids f...

Q. What is the special route that lipids follow during digestion? What are chylomicrons? Triglycerides emulsified by the bile within micelles suffer the action of lipases that

Formation of lactate and its consumption, Formation of  lactate and  its ...

Formation of  lactate and  its consumption Formation of  lactate and  its consumption : If anaerobic conctitions prevail, the reoxidation  of NADH  through the respiratory cha

Anterior interventricular - artery, The arterial supply is  by the right an...

The arterial supply is  by the right and left coronary arteries. In the event of sudden block of one artery the area of myocardium supplied by that artery undergoes infarction.

Destruction of microorganisms, Q. Destruction of microorganisms? Ans. ...

Q. Destruction of microorganisms? Ans. Destruction or control of growth of microorganisms is the basis of food preservation. To 'preserve' actually means fro keep safe, r

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