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

Ameoba, locomotion in amoeba

locomotion in amoeba

Acid-base imbalances from appearing in the body, List and briefly describe ...

List and briefly describe the mechanisms that prevent acid-base imbalances from appearing in the body. In addition, indicate where each mechanism functions most significantly.

Zoology, explain in detail various types of epithelial tissue

explain in detail various types of epithelial tissue

Protein requirement during congestive cardiac failure, Q. Protein Requireme...

Q. Protein Requirement during congestive cardiac failure? Protein: The protein requirements remain the &me as healthy adult men and women, About 0.8 - lg of protein per kg

Explain polyenes - amphotericin b, Polyenes: amphotericin b Amphoterici...

Polyenes: amphotericin b Amphotericin B products are the only polyenes currently available for systemic treatment of fungal infections.  Nystatin, another polyene, is only avai

Common disease of pig, COMMON DISEASE OF PIG  - 1 .       FOOT AND MO...

COMMON DISEASE OF PIG  - 1 .       FOOT AND MOUTH DISEASES 2 .       ANTHRAX 3 .       TUBERCLOSIS 4 .       SWINE FEVER - Charactrized by high fever, d

Define ergogenic and for training and competition, Define Ergogenic and for...

Define Ergogenic and for training and competition? There is always our desire to work with the body more .than its capability. This is more so in case of athletes. They wish to

Illustrate mitral stenosis and pregnancy, Q. Illustrate Mitral Stenosis and...

Q. Illustrate Mitral Stenosis and Pregnancy ? Since mitral stenosis is often seen in young women, it is not uncommon to see young women with pregnancy complicated by mitral ste

Define fats required for underweight - nutritional care, Define Fats requir...

Define Fats required for underweight - nutritional care? Fats: We know that fats are concentrated source of energy (lg = 9 Kcals). Fats are capable of increasing the energy val

Describe coping skills, Have you ever said, ‘I cannot cope up with this?' O...

Have you ever said, ‘I cannot cope up with this?' Or have you heard any one who is sick in your family saying, ‘I cannot cope with my sickness' or ‘I can not take care of this sick

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