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

Which is better to grow plants in rock sand or soil, Which is better to gro...

Which is better to grow plants in Rock sand or soil? When we grew plants inside, with there is no wind, and the plants in the rocks grew improved than the plants that were grow

How is the fluid that fills the nucleus called, The aqueous fluid that fill...

The aqueous fluid that fills the nuclear region is known as karyolymph, or nucleoplasm. In the fluid there are proteins, enzymes and other significant substances for the nuclear me

Chambers of the heart, Chambers of the Heart The heart is divided in...

Chambers of the Heart The heart is divided into two halves by a muscular wall or septum, the right heart and the left heart. The function of the right heart is to collect

Biotic potential of a bacterial population, Q. How different is the growth ...

Q. How different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a bacterial population? The growth c

Pharynx and larynx, Pharynx: Pharynx  is a funnel shaped tube about  1...

Pharynx: Pharynx  is a funnel shaped tube about  13cm long that  starts at the internal nares and  extends to the  level of the cricoid cartilage. It  lies posterior  to the n

Improvement of cereal proteins - mutual supplementation, Define Improvement...

Define Improvement of cereal proteins - Mutual supplementation? Improvement of cereal proteins: Cereals, in general, are limiting in lysine and threonine while legumes, milk, m

Urine collection, Urine Collection: Untimed or random urine specimens ...

Urine Collection: Untimed or random urine specimens are suitable only for few chemical tests (mainly qualitative test). Usually urine sample is collected over a predetermined

Structural function - essential elements, Structural Function - Essential E...

Structural Function - Essential Elements The elements nitrogen, phosphorus and sulphur absorbed from the soil are essential components of amino acids and nucleotides. The othe

Neck examination of new born, Neck Inspect and palpate the neck for an...

Neck Inspect and palpate the neck for any mass, check if neck is short, and webbed which is indicative of Turner's syndrome. Palpate posteriorly along cervical spine; later

Cellular respiration, Cellular respiration Cellular respiration is mor...

Cellular respiration Cellular respiration is more or less a reverse process of photosynthesis. During cellular respiration complex carbon compounds, especially the carbohydrat

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