In E. coli. an operator gene combine with :

Question

In E. coli. an operator gene combine with : (A) inducer gene to switch on structural gene action (B) inducer gene to switch off structural gene action (C) regulator protein (repressor) to switch off structural gene action (D) regulator protein to switch on gene action

Tardigrade Admin · Accepted Answer

Operator gene is a part of DNA between promotor and structural gene, where repressor binds to stop activity of RNA polymerase. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/biology/85e84b2fe290799182374c389992e127-.png" />

Q. In E. coli. an operator gene combine with :

inducer gene to switch on structural gene action

inducer gene to switch off structural gene action

regulator protein (repressor) to switch off structural gene action

regulator protein to switch on gene action

Operator gene is a part of DNA between promotor and structural gene, where repressor binds to stop activity of RNA polymerase.