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

Porifera - regeneration in invertebrates, Porifera - Regeneration in Invert...

Porifera - Regeneration in Invertebrates Sponges have immense regenerating ability and show two ways of doing so as displayed below. : (a) Regeneration from small segments-

Explain the enriched and living culture media, Explain the Enriched and Liv...

Explain the Enriched and Living Culture Media? Enriched Media - It is used for isolation of fastidious organisms, i.e., organisms having specific and elaborate nutritional requ

What are the main proteins that constitute the sarcomere, What are the main...

What are the main proteins that constitute the sarcomere? What is the function of those molecules in the muscle cells? In the sarcomere there are organized myosin and actin blo

Nutrition, You will be learning about vitamins and minerals (micronutrients...

You will be learning about vitamins and minerals (micronutrients) over a 2 week span. Remember phytochemicals from the Controversy section of chapter 2? They are not vitamins, b

Define hepatic triglyceride synthesis, Q. Define Hepatic Triglyceride Synth...

Q. Define Hepatic Triglyceride Synthesis? Fatty acid flux to the liver from adipose tissue appears to be an important determinant of hepatic triglyceride synthesis and VLDL sec

Describe the important factors of hand washing, Describe the important fact...

Describe the important factors of Hand washing Hand washing is an important practice to follow before doing any procedure for the patient. The infection can be transferred

Do you know about lateral lines of fishes, Q. What are the lateral lines of...

Q. What are the lateral lines of fishes? The lateral lines of bony fishes are sense organs that extend along both sides of the animal body they make contact with the environmen

Define the root perforation, Define the Root Perforation An endodontic ...

Define the Root Perforation An endodontic perforation is an artificial opening in the tooth or its root, created by clinician during entry to the canal system or by a biologic

Psychosocial therapy, PSYCHOSOCIAL THERAPY: Psychosocial therapy is on...

PSYCHOSOCIAL THERAPY: Psychosocial therapy is one of  the important treatment modaIities used for the patients with mental disorders. It is given along with other therapies or

Primary prevention - levels of prevention, Primary Prevention: Primary...

Primary Prevention: Primary prevention should have the following goals:  i)  Ascertaining at the risk population and  the high risk situations where stressful life events a

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