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

Coronary arteries, Coronary Arteries The right coronary artery origina...

Coronary Arteries The right coronary artery originates form the right aortic valvular cusp, its, SA nodal branch supplies the SA node and AV nodal branch supply the AV nod

State the internal chromosomal segments, Which of the following best explai...

Which of the following best explains the reason why DNA ligase is needed to complete the replication of internal chromosomal segments? A. DNA ligase is able to delete the last

What about whale fins compared to fish fins, Q. Are the limbs modified into...

Q. Are the limbs modified into wings of bats and the wings of birds instance of evolutionary homology or analogy? What about whale fins compared to fish fins? Bird and Bat wing

Birth of genetics, Birth of Genetics Modern genetics originated with Gr...

Birth of Genetics Modern genetics originated with Gregor Mendel's work. It is based on this paper entitled "Experiments in Plant Hybridisation " published in 1866 inqthe Procee

Homework, why do ecological models commonly have limited applications?

why do ecological models commonly have limited applications?

Blood collection, Blood Collection: Blood for analysis may be obtained...

Blood Collection: Blood for analysis may be obtained from veins, arteries, or capillaries. Venous blood is usually the specimen of choice, and venipuncture is the method for

Staging of heart failure, In this unit you have learnt that heart failure i...

In this unit you have learnt that heart failure is one of the most common conditions seen and results in a high mortality. It can result from failure of the heart muscle as with co

The splinter with a sterile needle, joey has a splinter in his finger. His ...

joey has a splinter in his finger. His mother pulled the skin away from the splinter with a sterile needle and removed the splinter. Joey did not feel pain and did not bleed. Expla

The urea cycle, The urea cycle which is also known as the ornithine cycle i...

The urea cycle which is also known as the ornithine cycle is a cycle of biochemical reactions occurring in several animals which produces urea ((NH2)2CO) from ammonia NH3. That cyc

State the foot examination of a diabetic patient, State the Foot examinatio...

State the Foot examination of a diabetic patient Foot examination of a diabetic patient is very crucial in early detection and proper treatment of foot problems.  In every fol

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