Question

in prokaryotic cells, repressor proteins bind to a section of dna called a/an (1 point)
chromatin.
promoter.
operator.
repressor.

Explanation:

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

Answer:

operator.