The $TATA$ box of a eukaryotic promoter lies:

  • A
    about $25$ $bp$ upstream of the transcription start site.
  • B
    about $50$ $bp$ upstream of the transcription start site.
  • C
    about $75$ $bp$ upstream of the transcription start site.
  • D
    about $200$ $bp$ upstream of the transcription start site.

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