What is the function of the operator in an operon a. provide a site on the dna where the repressor can bind and stop transcription b. provide a site on the dna where rna polymerase can bind to begin transcription c. code for the repressor protein d. code for the rna polymerase protein

The answer is; A

The operator site is usually associated with the promoter region of the operon. This region is bound by a repressor. The repressor acts as a physical barrier so the RNA polymerase  does not bind to its promoter, or even if it binds, does not proceed to transcribe the genes.

b brown mice / white sand dunes