Which of the following binds to DNA using a specific sequence?
A) histones
B) Lac repressor protein
C) double-stranded binding proteins
D) single-stranded binding proteins

Question

Quizplus · Accepted Answer

The Lac repressor protein binds to DNA using a specific sequence, known as the operator region, which is located near the start site of the Lac operon. The Lac repressor protein helps regulate the expression of the genes in the Lac operon by binding to the operator region and blocking RNA polymerase from transcribing the genes.

A) Histones are proteins that bind to DNA to form nucleosomes, which help regulate the packaging of DNA in the nucleus, but they do not bind to DNA using a specific sequence.
C) Double-stranded binding proteins may bind to DNA using specific sequences, but this is not always the case as they can also bind to double-stranded DNA in a non-specific manner.
D) Single-stranded binding proteins bind to single-stranded DNA, but not in a sequence-specific manner.

Which of the Following Binds to DNA Using a Specific