In the lac operon, the operator functions as a:
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Correct answer: A binding site for the repressor
The operator is a short DNA sequence located between the promoter and the structural genes of an operon. The repressor protein binds to the operator and physically blocks RNA polymerase from transcribing the downstream genes.
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More Gene Regulation: Operons and Epigenetics questions
- Which molecule acts as the inducer of the lac operon?
- The trp operon is classified as a:
- In the trp operon, high levels of tryptophan result in:
- Which component of an operon contains the coding sequences for enzymes?
- Catabolite repression in the lac operon is mediated by:
- Epigenetics refers to heritable changes in gene expression that occur without changes in: