Which of the following proteins binds to the operator in the operon model?

Question

Quizplus · Accepted Answer

The regulatory protein binds to the operator in the operon model. This protein can either turn on or off the expression of the genes in the operon by blocking or allowing the binding of RNA polymerase to the promoter region. DNA polymerase is not involved in regulation of gene expression, whereas RNA polymerase is responsible for transcription of the genes. Lactose is the inducer in the lac operon, but it does not directly bind to the operator.

Which of the Following Proteins Binds to the Operator in the Operon