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

Explain eicosanoids, Explain Eicosanoids Eicosanoids are the  local h...

Explain Eicosanoids Eicosanoids are the  local hormones formed  by  body  tissues during self-healing responses  to  stimuli.  Eicosanoids are  a family  of  compounds  deriv

Liquid manure handling, L iq uid manure handling This involves use of...

L iq uid manure handling This involves use of lot of water to flush the manure in to collection tank. Storage capacity depends on type of farm, irrigation facility, storage t

Explain about the soil morphology, Explain about the Soil morphology S...

Explain about the Soil morphology Soil morphology is the description of the soil body and its general characteristics. The morphology of the soil is expressed by number, kinds

Define epithelial tissue, Epithelial tissue the cells in animals which are...

Epithelial tissue the cells in animals which are closely packed in either single or multiple layers, and which cover internal and external surfaces both of the animal body. It is

Evolutionary innovation presented by nematodes, Q. What is the major evolut...

Q. What is the major evolutionary innovation presented by nematodes? What is the benefits of that innovation? The major evolutionary innovation of nematodes is the complete dig

Which chamber does the blood go after leaving left atrium, Q. To which hear...

Q. To which heart chamber does the blood go after leaving the left atrium? What is the valve that separates these compartments? The valve between the left atrium and the left v

Temperate evergreen forest - ecosystem, Temperate evergreen forest - Ecosys...

Temperate evergreen forest - Ecosystem Many parts of the world have a mediterranean type of climate which is characterised by warm, dry summers and cool, moist winters. These

Determine the syndrome of listeriosis, Determine the Syndrome of Listerios...

Determine the Syndrome of Listeriosis Syndrome: Listeriosis in humans is not characterized by a unique set of symptoms since the course of the disease depends upon the state

What is cell cycle, What is cell cycle? Cell cycle, or mitotic cycle, i...

What is cell cycle? Cell cycle, or mitotic cycle, is the time period that starts when the cell is formed and finishes when it is divided by mitosis making two daughter cells. T

Homomorphic types - intra specific incompatibility, Homomorphic Types - Int...

Homomorphic Types - Intra specific Incompatibility It is characterized by morphologically indistinguishable mating types within a species. A proper breeding is required for th

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