Which of the following statements about promoters in prokaryotic genes is CORRECT?
A) Promoters are adjacent to the 3' end of the transcription unit.
B) A promoter is the site of binding DNA polymerase prior to the initiation of transcription.
C) Promoters are adjacent to the operon, the site of binding of specific regulatory proteins.
D) Promoters are not involved in the regulation of gene expression.
E) None of the answers are correct.

Question

Quizplus · Accepted Answer

Promoters in prokaryotic genes are regions of DNA that are located near the 5' end of the gene, not the 3' end, and they are the site where RNA polymerase binds to initiate transcription, not DNA polymerase. They are directly involved in the regulation of gene expression by controlling the initiation of transcription, and they can be part of operons, which are clusters of genes regulated together. Therefore, none of the provided statements accurately describe promoters in prokaryotic genes.

Which of the Following Statements About Promoters in Prokaryotic Genes