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

What is the mean of crp, CRP is a marker of systemic inflammation. As the r...

CRP is a marker of systemic inflammation. As the role of inflammation in the initiation and progression of atherosclerosis becomes better understood, CRP has gained prominence as a

What is the importance of vitamin C, Importance of Vitamin c Vitamin C ...

Importance of Vitamin c Vitamin C is involved in redox processes in the organisms. It is possible, that vitamin C exerts its physiological function as a redox  substance in com

Explain global burden in the history of mart disease, Explain Global burden...

Explain Global burden in the history of mart disease? In 2001, 17 million people died of CVD of all types. The most important causes were ischemic heart disease (IHD), Hyperten

Limnology, Limnology : It is the study of organisms present in rivers or fr...

Limnology : It is the study of organisms present in rivers or fresh water lakes. Limnology is also called as freshwater science. This is the study of inland waters. Limnology is of

Define classification of functions of minerals, Define Classification of fu...

Define Classification of functions of minerals?  The varied functions of minerals can be grouped under four general physiologic roles viz. Structural: They form an integ

What a diploid cell contains, A diploid cell contains: A.one half of a comp...

A diploid cell contains: A.one half of a complete set of chromosomes B.several complete sets of chromosomes C.the correct number of chromosomes D.two complete sets of chromosomes E

Determine nutritional requirements for space missions, Determine Nutritiona...

Determine Nutritional Requirements for Space Missions? Space exploration represents a new frontier in the nutritional sciences and humans are eating in space since Cosmonaut Yu

Define classification of carbohydrates - disaccharides, Define classificati...

Define classification of carbohydrates - Disaccharides? Disaccharides are condensation products of two monosaccharide units joined together by a linkage called glycosidic linka

Define the basic concepts behind the spectral techniques, Define the Basic ...

Define the Basic Concepts behind the Spectral Techniques? Energy is transmitted via electromagnetic waves that are characterized by their frequency and wavelength. The physical

Integumentary system - various glands, OTHE R GLANDS - (i) Mammary gl...

OTHE R GLANDS - (i) Mammary glands - Study of mammary gland is mastology. Modified sweat gland. 4-5 pairs in rabbit. 1 pair in human. In opposum 25 pairs (max.).

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