Which of the following statements correctly describes the primary difference between enhancers and proximal control elements?
A) Enhancers are transcription factors; proximal control elements are DNA sequences.
B) Enhancers improve transcription; proximal control elements inhibit transcription.
C) Enhancers are located considerable distances from the promoter; proximal control elements are close to the promoter.
D) Enhancers are long regions of DNA; proximal control elements are shorter RNA molecules that stand in for DNA.

Question

Quizplus · Accepted Answer

Enhancers and proximal control elements both play roles in the regulation of gene expression, but they differ mainly in their location relative to the gene they regulate. Enhancers can be located far away from the gene promoter, sometimes thousands of base pairs away, and still affect transcription. In contrast, proximal control elements are located close to the promoter region of a gene.

Which of the Following Statements Correctly Describes the Primary Difference