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

How do mineral salts participate in enzymatic activity, How do mineral salt...

How do mineral salts participate in enzymatic activity? Many mineral salts are cofactors of enzymes. i.e., they are substances without which enzymes do not work.

Amine and the carboxyl groups, Q. Do the amine and the carboxyl groups atta...

Q. Do the amine and the carboxyl groups attached to central carbons participate in the union between amino acids? Yes. The nitrogen of the amine group of one amino acid binds t

What is diverticular disease, Q. What is Diverticular Disease? A common...

Q. What is Diverticular Disease? A common disorder of the large bowel, diverticulosis, is an early stage of the disease. It can be identified in 15% of the people over the age

CORAL REEF., A COMPLETE SEMINAR TALK FOR CORAL REEF

A COMPLETE SEMINAR TALK FOR CORAL REEF

Ecology, what is ecology?sub divison of ecology?

what is ecology?sub divison of ecology?

Reproduction, Which are the larval stages of Porifera?

Which are the larval stages of Porifera?

Explain difference between sonication and homozinization, Homogenization is...

Homogenization is intensive blending of mutually related substances or groups of mutually related substances to form a constant of diverse insoluble phases (sometimes withaddition

What is the genetic disease in which this factor is absent, What is factor ...

What is factor VIII? What is the genetic disease in which this factor is absent? Factor VIII has the function of activating factor X that in its turn is essential for the trans

Define the neurological disorders of dysphagia, Define the neurological dis...

Define the neurological disorders of dysphagia? In neurological disorders, damage to cranial nerves can lead to weak and poorly co- ordinated tongue movements, which results in

Toxoplasmosis, Toxoplasmosis Toxoplasmosis, one of the important parasitic...

Toxoplasmosis Toxoplasmosis, one of the important parasitic zoonoses, occurs all over the world, and is caused by a protozoan parasite Toxoplasma gondii. Its definitive hosts are

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