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

Effects of malnutrition, Effects of malnutrition The effects of maln...

Effects of malnutrition The effects of malnutrition are not the same in adults and children. When the amount of food is not sufficient or when the nutrients are missing f

Association of fibrinogen with cardiovascular risk factors, Q. Association ...

Q. Association of Fibrinogen With Cardiovascular Risk Factors? Ans. Fibrinogen, a large glycoprotein made mostly in the liver, is a clotting factor that activates thrombin

What do you man by extracellular digestion, Q. Concerning extracellular dig...

Q. Concerning extracellular digestion what is meant by chemical digestion? Chemical digestion is the series of enzymatic reactions to break macromolecules into smaller ones.

Causes of deforestation, Other Causes - Deforestation Natural enemies ...

Other Causes - Deforestation Natural enemies like termites, pests and several kinds of diseases affect the forests adversely. There is also massive destruction of forests beca

Explain about the anorexia nervosa, Explain about the Anorexia Nervosa? ...

Explain about the Anorexia Nervosa? Anorexia nervosa, as you have read above, is a psychological eating disorder characterized by somatic delusions that one is too fat despite

Prevention of iron deficient anaemia, Prevention   You as nurse needs t...

Prevention   You as nurse needs to ensure that iron supplementation  is given to children who are at risk for iron deficiency.  Iron supplementation  should start between 4 and

Taxonomy, what is the taxonomic classification for the protist Archaeplasti...

what is the taxonomic classification for the protist Archaeplastida?

Horse diseases-equine encephalomyelitis, Equine encephalomyelitis Encep...

Equine encephalomyelitis Encephalomyelitis or inflammation of the brain tissue and the spinal cord, can be brought about by different viruses. Eastern-, Western- and Venezuelan

Explain acylglycerols, Explain acylglycerols The most abundant class of...

Explain acylglycerols The most abundant class of food lipids is the acylglycerols, also known as glycerol esters of fatty acids, which dominate the composition of depot fats in

Why do fats have thermal isolation properties, Why do fats have thermal iso...

Why do fats have thermal isolation properties? Triglycerides are weak heat conductors and in addition they form thick layers of fat tissue when accumulated by the organism. Tha

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