An enhancer is a sequence that increases transcription of a gene ____.
A) when its orientation is the same as that of the gene it controls
B) when it is located just downstream of the promoter
C) when it is located just upstream of the promoter
D) when it is distant from the gene it controls
E) independently of its position, orientation, and distance from a promoter

Question

Quizplus · Accepted Answer

Enhancers are unique in that they can increase the transcription of genes regardless of their position, orientation, or distance from the promoter. They do not need to be immediately upstream or downstream of the gene they regulate, and they can function in either orientation.

An Enhancer Is a Sequence That Increases Transcription of a Gene