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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.
State about the blood ocular barriers of the eye? Blood Ocular Barrier: All vascular beds of the eye are highly permeable to lipoid soluble substances (oxygen, carbon dio
Q. Is fecundation in amphibians internal or external? In this aspect are amphibians evolutionarily proximal to fishes or to reptiles? In the majority of the amphibian species f
describe the procedure of excretion in reptiles
Ivory was much in demand for production of a variety of jewellery and artifacts in the past. Reptile leather from crocodiles, lizards and snakes has quite a high demand for manufac
pour plate method
Why would a tongue not detect mild sweetness after eating foods with high sweetness? This happens due to of the "desensitization" of sensory receptors on the sensory cells of y
Protozoans are microscopic in size however some are large enough to be seen with naked eye. Microscopic organisms such as these have numerous advantages, one of which is that they
Re s t r u c t u re d Meat Products Restructuring technique is used for developing convenience products with texture in between intact steak and a comminuted product.
Burrowing - Mechanics of Locomotion Some polychaetes are burrowing. Instance is glycerides and capitellidae. Their parapodia are smaller. Burrowing is done by protrusion of pr
ECONOMI C IMPORTANCE OF WILD LIFE - (i) Plants - Produce food. Provide Timber, paper, gums, drugs, pigments, fibres, rubber, oils, condiments & fuel. Release O
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