Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Ribosomes: are minute nonmembranous and dense spheroidal particles or granules. First observed by electron microscopy by palade 1955. Being only about 200 to 250 a in diameter these are smallest, but most abundant of all cytoplasmic organelles. Every cell contains several thousands to millions of ribosomes. Most of these are linked at the surface of endoplasmic reticulum many are free in the cytosol, and some are found in the in the nucleus and mitochondria also in chloroplasts of plant cells.
Structurally. Each ribosome has two parts a proximal larger subunit linked to the endoplasmic are composed of RNA and proteins approximately in equal amounts. The ribosomal RNA ( rRNA) has only four macromolecules . Three in the larger subunit and one the smaller subnuits. Considerable portion of these RNA molecules secondarily become double stranded due to intermolecular the intermolecular base pairing so that the molecules become 3 dimensional .The ribosomal protein include 73 macromolecules 40 in large in 33 in small subunits .
Ribosomal subunits are assembled from their component r RNA and protein molecules in the nucleolus of nucleus. These are of the four r RNA molecules are synthesized in the nucleolus . The fourth is synthesized by some chromosome outside the nucleolus. This and the 73 protein molecules synthesized in the cytoplasm migrate to the nucleolus for being incorporated in ribosomal subunits. The latter diffuse out into the cytoplasm and assemble to form ribosome's most of which link the endoplasmic reticulum.
All the cells present in the body contain genes and an approach targeted to modulate the expression of genes is known as gene therapy. This novel approach has emerged by the end of
What is the difference between facultative anaerobic beings and obligate anaerobic beings? Facultative anaerobic beings, such as the fungi Saccharomyces cerevisiae, a brewing y
Q. Dietary Management during congestive cardiac failure? Nutritional care is a little difficult in congestive cardiac failure. This is because oedema complicates the nutritiona
Q. Can High blood pressure cause coronary sclerosis? High blood pressure causes coronary sclerosis (hardening in early stages, fatty lesions in the inner surface of [he artery
A decrease in parasympathetic discharge to the heart leads to A. a decrease in the conductance of F-channels in SA node cells. B. an increase in the conductance of potassium
Explain the Procedure for Preparation of Culture Media? Now carry out the exercise following the steps given herewith: 1. To prepare potato dextrose medium, first, peel off
Features of Phylum Porifera and Eumetazoa Table: Distinctive Features of Phylum Porifera and Eumetazoa The branch Eumetazoa, as we have seen above, consist of meta
Q. What is Polypropylenes? Polypropylenes (PP) (cast PP, Bi-axially oriented PP (BOPP), pearlized PP): Polypropylene is often termed a breathable film. This film is not a
What are some diseases or genetic abnormalities caused by recessive genes? Instance of recessive genetic diseases are: cystic fibrosis, phenylketonuria, albinism, galactosemia,
Define reagent required and methodology for Barfoed Test? Reagents - Solutions of glucose, fructose, galactose, lactose, maltose, sucrose and starch - Barfoed's reagent
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd