What is self-catalytic rnas, Biology

Assignment Help:

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.


Related Discussions:- What is self-catalytic rnas

What are coacervates, What are coacervates? Coarcervates are small stru...

What are coacervates? Coarcervates are small structures made of the aggregation of organic molecules under water solution. By electrical attraction the molecules join into bigg

Homework, why do ecological models commonly have limited applications?

why do ecological models commonly have limited applications?

Describe the nature of the polymorphism, 1. DNA damage can occur spontaneou...

1. DNA damage can occur spontaneously or be induced by external factors. Describe the types of DNA damage caused by external factors and how they are repaired in prokaryotes and eu

Define the vital force hypothesis, How did Pasteur's experiment answer the ...

How did Pasteur's experiment answer the objections raised by supporters of the "vital force" hypothesis? Pasteur's experiment allowed air from the out- side to mix with air fro

Diabetic foot are impaired blood supply to foot, Diabetic foot are impaired...

Diabetic foot are impaired blood supply to foot Diabetic foot are impaired blood supply to foot i.e. vasculopathy. This leads to ischaemia which in turn leads to delayed or non

Types of surgery in exstrophy of the bladder, Types of Surgery   There ...

Types of Surgery   There may be two options for surgical correction. Urinary Diversion In this following procedures are performed:  1)  Uretero sigrnoidostomy  if there  is

How are solutions classified, Q. How are solutions classified as per to the...

Q. How are solutions classified as per to their comparative tonicity? Comparative to another, a solution can be isotonic or isosmotic, hypotonic or hyposmotic or hypertonic or

Human biology , Your final assignment is to write an (~2000 words) on any d...

Your final assignment is to write an (~2000 words) on any drug that is currently approved by the FDA, describing how the drug works based on the mechanisms of human biology describ

Contra indication in circulatory assist devices, Contra Indication :  It i...

Contra Indication :  It is absolutely contra indicated if their is more than trivial aortic regurgitation. Aortic aneurysm and severe aorto iliac disease are also contra indicatio

Explain about the biofertilizers, Explain about the Biofertilizers Biof...

Explain about the Biofertilizers Biofertilizers, are the cultures of microorganisms used for inoculating seed or soil or both under ideal conditions to increase the availabilit

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