Lampbrush chromosomes, Biology

Assignment Help:

LAMPBRUSH CHROMOSOMES

  1. Discovered by Ruckert.
  2. Lampbrush Chromosomes were seen in Oocytes of several different animals like shark, amphibians, reptiles and birds. (Most distinct in Diplotene stage).
  3. Giant size of these Chromosomes is due to increase in size of Chromonema (not due to number). Chromonema grows in size to form lateral loops.
  4. Synthesis of m-RNA occurs on lateral loops.
  5. Lampbrush    Chromosomes    concerned    with vitellogenesis. (Yolk formation)

572_lampbrush chromosomes.png


Related Discussions:- Lampbrush chromosomes

Write at least two possible explanations, Suppose that the type of drink di...

Suppose that the type of drink did not affect which can floated or sank. May be the cans themselves were different in some way. May be something besides soda got into one of the ca

Define water losses by visible perspiration, Define water losses by visible...

Define water losses by visible perspiration? The water losses by visible perspiration are highly variable; the amount could be as high as 4L in hot climate or during strenuous

Explain the soft diet, Explain the soft diet The soft diet provides so...

Explain the soft diet The soft diet provides soft whole food that is lightly seasoned and moderately low in fibre. The foods have a soft  texture and are easy  to digest. Smal

Somatoform disorders, SOMATOFORM DISORDERS: The term 'Neurosis'  was f...

SOMATOFORM DISORDERS: The term 'Neurosis'  was first introduced in 1769 by William Cullen (1710-  1790). Till later part of nineteenth century, anxiety disorders were conspicu

Kidneys participate in the acid-basic equilibrium, Q. How do kidneys partic...

Q. How do kidneys participate in the regulation of the acid-basic equilibrium of the body? How are alkalosis and acidosis respectively corrected by the kidneys? Kidneys can reg

Primitive arthropods, Primitive Arthropods The primitive arthropods, O...

Primitive Arthropods The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of t

Chromosome, Apparently. The untwisting, unzipping. Rezipping and retwisting...

Apparently. The untwisting, unzipping. Rezipping and retwisting occur sequentially and ensure that each newly formed double helix is exactly like other one. The final result is a p

Define nutritional management of eating disorders, Define Nutritional Manag...

Define Nutritional Management of Eating Disorders? In the last unit, we focused on weight management. It is important to understand that the problems associated with too much d

Determine some dietary sources of vitamin c, Determine some Dietary Sources...

Determine some Dietary Sources of Vitamin C? Fruits (particularly citrus fruits), vegetables are the best sources of ascorbic acid. Amla is the richest source of ascorbic acid.

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