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

Explain what position of patient will during jvp examination, Explain what ...

Explain what Position of Patient will be During JVP Examination ? Position of Patient During JVP Examination: The patient is propped up to 45"on a back rest or pillow as in thi

How does the swim bladder of fishes work, How does the swim bladder of fish...

How does the swim bladder of fishes work allowing fishes to control their depth under water? From Hydrostatics it is called that an object does not sink if its density is equal

Describe the working of immune system, Q. What is the function of the immun...

Q. What is the function of the immune system? The immune system performs specific defense against agents the antigens that are harmful to the body or foreign. Exogenous anti

Cell cycle, What can stop a normal cell from growing?

What can stop a normal cell from growing?

Gaseous exchange, Gaseous Exchange Gaseous exchange is take place on b...

Gaseous Exchange Gaseous exchange is take place on by both mantle and the gills. The gills of most bivalves are highly changed for filter feeding. They are derived from the pr

Occupational lung diseases, Occupational Lung Diseases The common occu...

Occupational Lung Diseases The common occupational lung diseases include silicosis due to inhalation of inorganic dust, allergic alveolitis due to inhalation of organic dus

Define diet for treatment for protein energy malnutrition, Define Diet for ...

Define Diet for Treatment for Protein Energy Malnutrition? Treatment of cases of kwashiorkor or marasmus involves mainly providing appropriate nutrition support. The child shou

Expalain briefly vitamin A, Vitamin A (Retinol) Purified vitamin A is a...

Vitamin A (Retinol) Purified vitamin A is a viscous yellowish oil. It is freely soluble in most organic solvents such as methanol, ether, acetone, chloroform and petroleum ethe

Class of mollusca - monoplacophora, Class of Mollusca - Monoplacophora ...

Class of Mollusca - Monoplacophora Bilaterally symmetrical, with broad flat foot and single shell, mantle cavity has five to six pairs of gills; six pairs of nephridia of whi

What is oxidation and reduction, What is Oxidation and Reduction? Oxid...

What is Oxidation and Reduction? Oxidation and Reduction :   Most people are familiar with oxidation as it pertains to the rusting of metals. Oxygen grabs electrons from iron

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