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

Difference between smooth and rough endoplasmic reticulum, What is the diff...

What is the difference among smooth and rough endoplasmic reticulum?       Ans) The endoplasmic reticulum is a fine membranous structure contiguous to the nuclear membrane and p

Respiration, what is the organ of respiration in snaks

what is the organ of respiration in snaks

Visualize patient ductus arteriosus, Q. Visualize Patient Ductus Arteriosus...

Q. Visualize Patient Ductus Arteriosus? Best view to visualize a patient ductus arteriosus is high parasternal or ductal view. A patient ductus arteriosus in this view is see

How many times acidic is a ph=4, How many times more acidic is a pH=4 from ...

How many times more acidic is a pH=4 from a pH=7 solution?

In which chloroplast structure are chlorophyll found, In which chloroplast ...

In which chloroplast structure are chlorophyll molecules found? Chlorophyll molecules are placed in an organized manner in order to increase the exposure to light on the thylak

What is reaction specificity, Reaction specificity Some  enzymes  catal...

Reaction specificity Some  enzymes  catalyze only one  reaction  acting  on  a specific substrate. Example: urease  and  catalase  acts  only  on  urea and  hydrogen peroxide,

Zoonoses disease-yabapox, Yabapox Yabapox is a disease affecting mangabeys...

Yabapox Yabapox is a disease affecting mangabeys, rhesus, cynos, vervets, stumptails, and patas monkeys. It is caused by the Yaba-like disease virus (YLDV) and Yaba monkey tumor v

Define aerobic respiration, Where in mitochondria does the process called r...

Where in mitochondria does the process called respiratory chain happen? Which are the products of the Krebs cycle used in that final phase of the aerobic respiration? Respirat

How is energy transferred along a food chain?, How is energy transferred al...

How is energy transferred along a food chain? The energy flux beside a food chain is always unidirectional, from the producers to the decomposers.

Explain about fats and oils, Explain about Fats and oils Fats and oils ...

Explain about Fats and oils Fats and oils are a unique class of agricultural products in that a high degree of interchangeability among them is possible for many products and u

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