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

Zoology, Wheel organ of amphioxus.

Wheel organ of amphioxus.

Medical management of mitral regurgitation, Q. Medical Management of mitral...

Q. Medical Management of mitral regurgitation? Vasodilator therapy to reduce afterload may be beneficial in patients with chronic mitral regurgitation, but there is no evidence

Define drug effects on food intake - causes taste changes, Define drug effe...

Define drug effects on food intake - Causes Taste Changes? Several drugs can cause an alteration in taste sensation, reduced acuity of taste sensation or leave an unpleasant af

Explain gonorrhea, Gonorrhea Single doses of cefixime (Suprax) orally ...

Gonorrhea Single doses of cefixime (Suprax) orally or ceftriaxone  (Rocephin)  intramuscularly (IM) are highly effective for uncomplicated anogenital or pharyngeal infection,

Show common contraindications of the contraceptive pills, Q. What are the c...

Q. What are the common contraindications of the contraceptive pills? There are medical reports associating the use of contraceptive pills with vomiting, headaches, vertigo, nau

Define growth hormone releasing hormone receptors, Define GHRH Receptors (G...

Define GHRH Receptors (Growth Hormone Releasing Hormone Receptors)? A. GHRH Receptors are only located in the plasma membranes of cells in the hypothalamus. B. GHRH Receptor

Science in the ancient world, Science in the ancient  world: We have e...

Science in the ancient  world: We have explained why we should study the history of science and what we mean by the history of science. We have seen what science is like in t

What is paediatric clinical literature, What is paediatric clinical literat...

What is paediatric clinical literature The paediatric clinical literature has expanded greatly in its coverage of the wide variety of medical circumstances that can negatively

Explain the reproductive cycles of female, Q. Generally how does a male ani...

Q. Generally how does a male animal realize that the female is receptive to copulation? In most vertebrate species with internal fecundation the females have reproductive cycle

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