Question

gene expression and gene regulation quick check
in prokaryotic cells, repressor proteins bind to a section of dna called a/an (1 point)
operator
chromatin
repressor
promoter

Explanation:

In prokaryotic cells, the operator is a specific DNA sequence. Repressor proteins bind to the operator. When a repressor binds to the operator, it can block RNA polymerase from transcribing the genes in the operon. Chromatin is a complex of DNA and proteins in eukaryotic cells. A repressor is a protein, not a DNA section. The promoter is where RNA polymerase binds to start transcription, not where the repressor binds.

Answer:

operator