An activator could influence gene expression at a promoter far away from the place that it binds dna as a Mediator protein is stimulated by the bound activator, and then the Mediator stimulates transcription.
What is a mediator?
The Mediator is described as a multiprotein complex that functions as a transcriptional coactivator in all eukaryotes that was discovered in 1990 in the lab of Roger D. Kornberg, recipient of the 2006 Nobel Prize in Chemistry.
The activator directly binds to RNA polymerase, which then skips over a large region of DNA to start transcription will not influence gene expression at a promoter far away from the place that it binds dna.
Learn more about gene expression at: https://brainly.com/question/20899111
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