Final answer:
The statement is true as promoters are specific DNA sequences to which RNA polymerase binds to initiate transcription.
Step-by-step explanation:
The statement that "In transcription RNA polymerase binds only to DNA promoters, which have specific base sequences" is true. Promoters are specific sequences of DNA nucleotides that signal the start of a gene. They are crucial for the initiation of transcription, the process whereby RNA is synthesized from a DNA template. RNA polymerase identifies these promoters and binds to them, which allows it to correctly position itself to start transcribing the adjacent gene into RNA. Promoter regions typically include sequences like the TATA box in eukaryotes, the Pribnow box in prokaryotes, and other regulatory elements that are recognized by transcription factors. The binding of RNA polymerase and transcription factors to the promoter sequences ensures that RNA synthesis is initiated at the correct location on the DNA.