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Question: Which of the following regulatory DNA sequences might be located thousands of nucleotides away from the transcription start site of a gene?

Options:

  1.  Promoter-proximal element
  2.  TATA box
  3.  Enhancer
  4.  Promoter

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Best answer

3. Enhancer

Enhancer regulatory DNA sequences might be located thousands of nucleotides away from the transcription start site of a gene.

Enhancers can function thousands of nucleotides away from the promoter and transcription start site.

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