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

Explain the corpus callosum, Right-handed adult patient X with a complete t...

Right-handed adult patient X with a complete transection of the corpus callosum is presented with a simple written question in X's right visual field. A barrier is positioned so th

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

Compare between mummers of dna vs monomers of rna, Name few polymers in the...

Name few polymers in the eukoratic cell? Name the mummers that make up the DNA? Compare and contrast between mummers of DNA VS monomers of RNA?

Describe the impact and burden of heart diseases, Describe the IMPACT AND B...

Describe the IMPACT AND BURDEN OF HEART DISEASES ? No discussion on the epidemiology of heart diseases will be complete without a look at the tremendous burden put by different

Symptoms of aortic regurgitation, Q. Symptoms of aortic regurgitation? ...

Q. Symptoms of aortic regurgitation? Patients with chronic severe AR may be asymptomatic for many years and it may be picked up on routine examination. Some patients may remain

What is speciation, What is speciation? The Speciation is the process b...

What is speciation? The Speciation is the process by which different species emerge from a common ancestor species. The Speciation generally begins when populations of the same

Explain the stool weight and laxation, Explain the Stool weight and laxatio...

Explain the Stool weight and laxation? The amount of stool excreted varies markedly from individual to individual and in an individual over a period of time. Faeces are complex

Define the sterilization protocol, Define the Sterilization protocol? S...

Define the Sterilization protocol? Sterilization protocol encompasses the following: 1. Transport of instruments to the sterilization area 2. Cleaning of instruments 3

Counselling at diagnosis, Q. Counselling at Diagnosis? A newly diagnose...

Q. Counselling at Diagnosis? A newly diagnosed case of diabetes will have lots of questions and will be confused regarding the treatment and complications of the diabetes. It i

Saturated fatty acids, Saturated Fatty Acids - These are solid at ro...

Saturated Fatty Acids - These are solid at room temperature. These are metabolically less active so have a tendency to deposit in the body (synthesized in body) These

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