Gene Regulation|Gene Regulatory Model - Operon|LAC Operon|Switched Off|Switched On

Gene Regulation|Gene Regulation In Prokaryotes|Lac Operon

The Lac operon gets switched on when

In lac operon,the regulator gene codes for

Regulation Of Gene Expression|Operon Concept|OMR

Study the schematic representation of the genes involved in the lac operon given below and answer the questions that follow : {:(p,i,p,o,z,y,a):} (a) Identify and name the regulatory gene in this operon. Explain its role in 'switching off' the operon. (b) Why is the lac operon's regulation referred to as negative regulation ? (c ) Name the inducer molecule and the products of the genes 'z' and 'y' of the operon. Write the functions of these gene products.

Regulation of lac operon by repressor is called

In E.coli, the lac operon gets switched on when :

In operon model, regulator gene :

Name the genes that constitute an operon. How does lac operon get switched on in the presence of lactose?