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

Define the term - lateralisation and localisation, Define the term - latera...

Define the term - lateralisation and localisation Discriminative validity studies including lateralisation and localisation achieved satisfactory results, but the localisation

Describe the stages of atherosclerosis, Describe the Stages of Atherosclero...

Describe the Stages of Atherosclerosis ? The process of atherosclerosis which gives rise to CAD marches in stages. The earliest recognizable pathologic lesions are the fatty st

Enumerate about the traumatic brain injuries, Enumerate about the Traumatic...

Enumerate about the Traumatic brain injuries Brain injury is a common result of automobile and industrial accidents and of war injuries. Brain injury can affect brain function

Synthesis of starch, Thus animals store surplus carbohydrate as glycogen; p...

Thus animals store surplus carbohydrate as glycogen; plants do so in form of starch. Starch is producing in the stroma of chloroplasts and stored there as starch grains. The Starch

Plants, In school laboratory, what is usually regarded as evidence that pho...

In school laboratory, what is usually regarded as evidence that photosynthesis has occurred in a plant

Describe the term physiotherapy, Describe the term Physiotherapy? Patie...

Describe the term Physiotherapy? Patients who are sedated, intubated and ventilated are not able to deep breathe, cough and clear secretions. Hence, it is important to do chest

Budding- asexual reproduction, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is molecular weight, What is molecular weight? Molecular Weight ...

What is molecular weight? Molecular Weight :  The molecular weight of a molecule refers to the sum of the atomic weights of all the atoms making up the molecule. The gram mol

Determine the reliability of the battery, Determine the reliability of the ...

Determine the reliability of the battery The issue of reliability of the battery has been addressed, with reasonably successful results. Clinical interpretation of the battery

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