Which of the following switch off lac operon

Question

Which of the following switch off lac operon (A) Structural gene (B) Regulator gene (C) Operator gene (D) Promoter gene

Tardigrade Admin · Accepted Answer

Regulator gene codes for a protein known as repressor protein. The operon is switched off when repressor protein produced by regulator or inhibitor gene binds to operator gene and prevents RNA polymerase from transcribing the operon.

Q. Which of the following switch off lac operon

Structural gene

Regulator gene

Operator gene

Promoter gene

Regulator gene codes for a protein known as repressor protein. The operon is switched off when repressor protein produced by regulator or inhibitor gene binds to operator gene and prevents RNA polymerase from transcribing the operon.