What is the function of the operator region in prokaryotic DNA?
What is the function of the operator region in prokaryotic DNA?
To bind a repressor protein
To bind a transcription factor
To synthesise RNA polymerase
To catalyse the hydrolysis of lactose
Solution
The operator region is adjacent to the promoter elements in most operons and in most cases the sequences of the operator bind a repressor protein. Each operon has its specific operator and specific repressor.