Explain repressors , Biology

Assignment Help:

Gene repressor proteins which inhibit the transcription of particular genes in eukaryotes also exist. They may act by binding either to control parts within the promoter region near the gene or at sites located a long distance away from the gene, called as silencers.  The repressor protein should inhibit transcription directly. One instance is the mammalian   thyroid   hormone   receptor   that,   in the absence   of   thyroid   hormone   represses   transcription   of   the   goal   genes. Furthermore, other repressors inhibit transcription by blocking activation.  This can be get  in one of several  ways:  by blocking  the DNA  binding  site for an activator  protein, through binding to and masking  the activation  domain of the activator  factor,  or  by  forming  a  non-DNA  binding  complex  with  the  activator protein. Several instance of every mode of action are known.

 


Related Discussions:- Explain repressors

What are some prophylactic measures against hiv infection, What are some pr...

What are some prophylactic measures against HIV infection? The major prophylactic measures against HIV infection are: the use of condoms in sexual relations, not to share syrin

An a=t mispairing leads to an a=c substitution, An A=T mispairing leads to ...

An A=T mispairing leads to an A=C substitution. The other DNA helix will contain a(n) __ pair. a. A=C b. A=T c. G=C d. B=Q e. T=T Can you also explain it please so if I'm ask

Calculate the frequencies of heterozygotes, If dimples may be considered a ...

If dimples may be considered a single-gene dominant trait, and 64% of the population features dimples, calculate the frequencies of heterozygotes and both types of homozygotes, ass

Emerging trends in nutritional content of technologically, Define Emerging ...

Define Emerging trends in the nutritional content of technologically? Increased concern about the nutritional content of technologically derived, advanced foods is expressed by

Phytoplankton stage - hydrarch, Phytoplankton Stage - Hydrarch In this...

Phytoplankton Stage - Hydrarch In this initial stage, the pond water is poor in nutrients and is devoid of much life. At this stage, the water is incapable of supporting large

What do you know zoological parks, Q. What do you know Zoological Parks? ...

Q. What do you know Zoological Parks? Zoological park has two faced aspects, the relationship between man and beast. There is awe and there is slaughter. There is worship and t

Excretion, What is the excretion for agamalizard

What is the excretion for agamalizard

Describe the roles and mechanisms of these rna molecules, 1 ." Most of the ...

1 ." Most of the genome does not code for protein, therefore 99% of the human genome is junk that serves no purpose". With specific reference to examples long and short non-coding

What are the animal pole and the vegetal pole of egg, Q. What are the anima...

Q. What are the animal pole and the vegetal pole of the vertebrate egg? The animal pole of a telolecithal egg is the portion of the egg with little vitellus it is opposite to t

Scope of biology, SCOPE OF BIOLOGY- Present century is witnessing ex...

SCOPE OF BIOLOGY- Present century is witnessing explosion of information in modem biology directly related to life and health. Issues like global warming, pollution, populat

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