Positive and negative regulation, Biology

Assignment Help:

The lac operon is an brilliant example of negative control or negative regulation of gene expression in which they bound repressor stops transcription of the structural genes. The Positive control or positive regulation of gene expression is when the regulatory protein binds to enhances and DNA the rate of transcription.  In that case the regulatory protein is called as an activator.  The CAP or CRP included in regulating the lac operon is a good instance of an activator. Thus the lac operon is subject to both positive and negative control.

 

 


Related Discussions:- Positive and negative regulation

Applied Biology, Which of the branches of applied biology ?

Which of the branches of applied biology ?

What is the importance of the glucose blood level, What is the importance o...

What is the importance of the glucose blood level for human health? The glucose blood level (glycemia) must be kept normal. If it is abnormally low there is not enough glucose

Alkaloids, Miscellaneous antinutritional substances Alkaloids: Alkal...

Miscellaneous antinutritional substances Alkaloids: Alkaloids represent a large and structurally diverse group of compounds present within angiosperm plants; the majority of

Serendipidity, SERENDIPIDIT Y - Sometimes discoveries are made unexpec...

SERENDIPIDIT Y - Sometimes discoveries are made unexpectedly matter of chance. This is serendipidity. Examples - 1.       Structural formula of benzene - It was dreamt by

Do plants present only sexual reproduction, Q. Do plants present only sexua...

Q. Do plants present only sexual reproduction? There are asexual forms of reproduction in plants few naturally detached pieces of root, leaves or limbs develop into another com

Opiate narcotics - psychological drug dependence, OPI A T E NARCOTICS - ...

OPI A T E NARCOTICS - They suppress brain activity and relieve pain popularly known as pain killers. They are sedative and astringent in nature. An astringent cause

Pregnancy, What are the physiological changes during pregnancy

What are the physiological changes during pregnancy

Define the phosphorus - the macromineral, Define the Phosphorus - The Macro...

Define the Phosphorus - The Macromineral? The body contains about 620 g (20 moles) of phosphorus. Of this 87% is present in bones. It is thus more widely distributed in the bod

What is the basic need for bone grafting, What is the basic need for bone g...

What is the basic need for bone grafting The basic need for bone grafting includes situations like: 1. Implant site development- when the quantity of bone is deficient to s

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