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

Change of health status over time, Change of Health Status Over Time Hea...

Change of Health Status Over Time Health of a nation can be gauged from the available information on death.Disaggregated data by causes of death is more reflective of the status

What are the hormones secreted by the adrenal cortex, Q. What are the hormo...

Q. What are the hormones secreted by the adrenal cortex? What are their respective functions? The cortical portion of the adrenals secretes hormones of the corticoid (or cortic

What is sex-influenced dominance, What is sex-influenced dominance? The...

What is sex-influenced dominance? The Sex-influenced dominance is the phenomenon in which the manifestation of a phenotype of a gene in heterozygosity depends on the sex of the

10 mcq question of plants, 10 mcq question in the topic of plants of 9th st...

10 mcq question in the topic of plants of 9th standard

Explain preparation and properties of modified starches, Preparation and pr...

Preparation and properties of modified starches Improved performance of starches may  be realized by physical and chemical modifications. The major physically modified starch i

How time affecting taste quality, Q. How Time affecting taste quality? ...

Q. How Time affecting taste quality? Time- Time is another factor which affects sensation. Salt on tongue is sensed in a fraction of a second; whereas, bitter things may requir

Define lactobacillus, Mention the product and its use formed by each the mi...

Mention the product and its use formed by each the microbes listed below: i)  Lactobacillus ii) Streptococcus iii)  Saccharomyces cerevisiae

What are the bacteria, Q. What are the bacteria? Bacteria are unicellul...

Q. What are the bacteria? Bacteria are unicellular and prokaryotic beings. Bacteria have simple organization they present an exterior cell wall, plasma membrane, circular DNA w

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