What is ribozymes , Biology

Assignment Help:

In at least single eukaryote, Tetrahymena, the pre-rRNA molecule holds an intron.  Erasing  of  the  intron  in running  processing  of  the  pre-rRNA  does  not require  the  assistance  of  any  protein!  Instead,  in  the  presence  of  guanosine, GDP, GMP   or  GTP,  the  intron  excises  itself is a  phenomenon  known  as  self- splicing.  This was the first expression of ribozymes, which is, catalytic RNA molecules which catalyze particular reactions. The Self-splicing introns have also been discovered  in  some  eukaryotic  mRNAs  and  even  peptidyl  transferase  a  main activity in protein synthesis is now known to be a ribozyme.

 

 


Related Discussions:- What is ribozymes

Arsenic, A r se n i c Arsenic is a widely distributed environmenta...

A r se n i c Arsenic is a widely distributed environmental pollutant that gets released into the environment through industrial processes and agricultural usage. Arsenic c

Sun, wath is sun

wath is sun

Skeleton, how they are joints to each other

how they are joints to each other

How does aldosterone act, Q. How does aldosterone act and where is it produ...

Q. How does aldosterone act and where is it produced? Aldosterone is a hormone that acts upon the nephron tubules stimulating the resorption of sodium Therefore it contributes

What is malabsorption syndrome, Q. What is Malabsorption Syndrome? Did ...

Q. What is Malabsorption Syndrome? Did you know that a major part of the absorption of nutrients takes place in the small intestine and the set of enzymes involved in this proc

Eretmochelys imbricata, Ivory was much in demand for production of a variet...

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

Name the animals having a single opening as mouth and anus, One example of ...

One example of animals having a single opening to the outside that serves both as mouth as well as anus is: 1. Octopus 2. Asterias 3. Ascidia 4. Fasciola Ascidia i

Peri operative myocardial infarction, Peri operative Myocardial Infarction ...

Peri operative Myocardial Infarction :  Peri operative Myocardial Infarction is diagnosed by the appearance of fresh Q waves. Non-Q, myocardial infarction is suspected when there

Explain the term microfilaments, Explain the term Microfilaments ? Mi...

Explain the term Microfilaments ? Microfilaments are fine fibrils, only 7 nm in diameter, composed of a protein called actin. Actin is one of the two major proteins involved

Difference between eye and camera, Difference between Eye and Camera - ...

Difference between Eye and Camera -   Camera   Ey e 1. Box.   2. Black inner paint   3. Shutter   4. Diaph

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