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Q. What is self-catalytic RNAs?
Ribozymes -Term 'ribozyme' was initially suggested by Thomas R. Cech, Nobel Prize winning biochemist, who discovered this class of RNA molecules. A ribozyme is an RNA molecule which may catalyze a biochemical reaction. Before discovery of ribozymes, it was generally presumed that protein enzymes were only class of biological catalysts. Cech's discovery was truly revolutionary in upsetting this dogma. First ribozymes discovered were introns which could catalyze their own splicing, that is a special type of intron within a pre-RNA molecule was found to catalyze all steps required for intron removal and joining of exons together at the biologically correct site.
Ribozymes with other kinds of biological activity have since been discovered. One intriguing potential ribozyme is peptidyl transferase activity of ribosome. Many believe that peptide bond formation is catalyzed by23S ribosomal RNA, a potential ribozyme, instead of ribosomal proteins.
Ernst Mayr, for whom, species and species problem have been the main concern of research, points out that speciation, the multiplication of species, that is division of one parent
Phospholipids exhibit important biological functions. They are: a) increase the rate of fatty acid oxidation b) act as inorganic ion carrier across the membrane c) hel
Q. Explain Shear Pin Model? Shear Pin Model: In this type, a shearing force is applied using a pin to shear the food Product. We are rupturing the element of the food product b
What are the factors responsible for corneal hydration? The factors responsible for corneal hydration are as follows: i. Stromal swelling pressure ii. Barrier function of
Deep fat frying Deep fat frying, as you may already know, is the method which involves cooking food in hot fat/oil. The fat immediately surrounds the food and cooks it from all
Glyceraldehyde has a one asymmetric carbon atom the central one and so two stereoisomers which is also known as optical isomers are possible, which is two forms of glyceraldehyde,
Class of Crustacea - Malacostraca Malacostraca involves most of the larger forms such as crabs, lobsters, shrimps etc. and constitute the majority of crustacean species. The c
Describe Pericardial Rub and their Characteristic ? Generation of sound: The sound is generated due to rubbing of visceral and parietal pericardial surfaces against each other
What are the plant tropisms? Tropisms are the movements that caused by external stimulus. In Botany the studied plant tropisms are phototropism (tropism in response to light),
classification of all organisms under d phylum protozoa
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