The DNA nucleotide sequence to which RNA polymerase binds to initiate transcription is called the:: (A) Exon, (B) Enhancer region, (C) Promoter region, (D) Repressor region
Answer is C. The region of the DNA to which the polymerase binds to initiate transcription is recognized as the promoter. Most promoters extend over a sixty base pair area of the DNA sequence. The nucleotide sequences of many promoters have been identified, but there appears to be little conservation of sequence among them. Ref: Weil P. (2011). Chapter 36. RNA Synthesis, Processing, & Modification. In D.A. Bender, K.M. Botham, P.A. Weil, P.J. Kennelly, R.K. Murray, V.W. Rodwell (Eds),Harper's Illustrated Biochemistry, 29e.