Gene regulation can involve a protein repressor that blocks _____ from initiating transcription.
A)DNA polymerase I
B)DNA polymerase III
C)RNA polymerase
D)mRNA
E)rRNA

Question

Quizplus · Accepted Answer

Gene regulation involves controlling the transcription of DNA into mRNA. RNA polymerase is the enzyme responsible for transcribing DNA into RNA. A protein repressor can block RNA polymerase from binding to the promoter region of a gene, preventing transcription from occurring. DNA polymerase I and III are involved in DNA replication, while mRNA and rRNA are products of transcription and not directly involved in the initiation of transcription.

Gene Regulation Can Involve a Protein Repressor That Blocks _____