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

Hemoglobin, describe the mechanism of allosteric change.

describe the mechanism of allosteric change.

Body fluids of marine teleost, Body Fluids of Marine Teleost The body ...

Body Fluids of Marine Teleost The body fluids of marine teleost are hypotonic to seawater, so these fishes lose water to the environment especially across the gill epithelium.

Use of the activity chart, Use of the Activity Chart Organizing t...

Use of the Activity Chart Organizing teams and to decide its strength of different operations on mass production work. Establishing teams for maintenance and similar

Functions of insulin, FUNCTION S - (a) It is antagonistic to glucagon....

FUNCTION S - (a) It is antagonistic to glucagon. Insulin decreases the level of glucose in the blood. It acts by increasing the rate at which glucose is transported out of the

Ways to adapt to stress, Ways to adapt to stress Now that you know the...

Ways to adapt to stress Now that you know the nature of stress, let us see what type of strategies plants have acquired to adapt to stress. You know that biological functions

Terminology use in apical dominance, Terminology use in Apical Dominance ...

Terminology use in Apical Dominance Here are a few terms that will be used in discussing apical dominance. A clear understanding of these terms is needed for understanding the

Phase (different interference) contrast microscopy, Phase (different interf...

Phase (different interference) Contrast microscopy: Living cells are mostly   transparent. For viewing under ordinary light microscope, therefore, live cells must be stained wi

What is hemoglobin releasing hormone, In a red blood cell, which of the fol...

In a red blood cell, which of the following will lead to a reduction in the percentage of hemoglobin that has oxygen bound to it? A. A decrease in the amount of HbRH (Hemoglobi

Etiological factor of malabsorption syndrome, Q. Etiological factor of mala...

Q. Etiological factor of malabsorption syndrome? The causes cited for malabsorption can be associated with a number of diseases. Many of these diseases you may not know presen

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