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, main external morphological feature that differentiates platyhelmi...

main external morphological feature that differentiates platyhelminthes from nematodes

Renal failure and transplantation, KIDNE Y (RENAL FAILURE) - RF - Part...

KIDNE Y (RENAL FAILURE) - RF - Partial or total inability of kidney to carry excretory functions is called RF. It leads to uremia (excess of urea in blood), salt-water imba

Explain about homo neanderthalensis, Homo neanderthalensis successfully liv...

Homo neanderthalensis successfully lived in the cold, harsh ice-age conditions of Europe until becoming extinct approximately 30 000 years ago. Adaptations which enabled them to s

What is an advantage of using proteins, Plants use proteins, lipids and sta...

Plants use proteins, lipids and starch as seed storage compounds. What is an advantage of using proteins as a storage compound that are not afforded by lipids or starch?

Who is caius plinius - taxonomy, Who is Caius Plinius - Taxonomy? Caius...

Who is Caius Plinius - Taxonomy? Caius Plinius Seconds, also known as Pliny the Elder (23-79 A.D.), a Roman naturalist and scholar, born in Como, mentioned nearly a thousand pl

Alternative processing: alternative splicing, Various cases  are  now  know...

Various cases  are  now  known  where  variant  tissues  splice  the  main  RNA transcript of a single gene by instead pathways, where the exons which are lost and those which are

Tularaemia, Tularaemia The disease is known by different names like de...

Tularaemia The disease is known by different names like deer fly fever, rabbit fever, Ohara’s disease or tularensis. It is an acute, febrile, granulomatous infection, caused b

Hypocoagulation disorder and vitamin k deficiency, Which of the following p...

Which of the following patients likely faces the highest risk of an acquired hypocoagulation disorder and vitamin K deficiency? Answer A. A patient who is immunocompromised as a re

Define the characteristics of bt cotton, Some of the characteristics of Bt ...

Some of the characteristics of Bt cotton are: 1.  Long fibre and resistance to aphids 2.  Medium yield, long fibre and resistance to beetle pests 3.  High yield and produ

Interior of the left atrium - heart, The left atrium is a thin walled cavit...

The left atrium is a thin walled cavity. Most of the wall is smooth. Musculi pectinati are present only in the auricle of the atrium. The interatrial septum separates the cavity of

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