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

Can you explain ventricular tachycardia, Q. Can you explain Ventricular Tac...

Q. Can you explain Ventricular Tachycardia? The term is usually reserved for at least four or more beats and modified by the term non sustained. Short runs of non-sustained VT

Molecular biology, how biochemical evidence proof DNA as a genetic material...

how biochemical evidence proof DNA as a genetic material?

Floral apex, Floral Apex Each plant must pass through a minimal 'ripe...

Floral Apex Each plant must pass through a minimal 'ripeness to flower' stage. That is, even to perceive and respond to a specific photoperiodic regime, a plant must be ready

Determination of the age of fossil, DETERMIN A TIO N OF THE AGE OF FOSSI...

DETERMIN A TIO N OF THE AGE OF FOSSIL - Radioactive clock (Boltwood -1907) - Half life of uranium is 4.5 billion years. This means half of total uranium disintegrates

HEALTHY DIET, EXPLAIN THE CONSTITUENT OF FOOD GROUPS AND THEIR SOURCES

EXPLAIN THE CONSTITUENT OF FOOD GROUPS AND THEIR SOURCES

Nutrition in animals, composition,sources,importance,types,requirements for...

composition,sources,importance,types,requirements for each food substances

What is the parasite that causes toxoplasmosis, What is the parasite that c...

What is the parasite that causes toxoplasmosis? How is the disease transmitted and what are its typical manifestations? Toxoplasmosis is caused by the protozoan Toxoplasma gond

Coevolution of prey-predators, Predation is a process by which one organism...

Predation is a process by which one organism (predator) eats another organism (prey). If the prey population is abundant, the predator population also becomes abundant. If the pred

Pennetula, Characters of pennetula

Characters of pennetula

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