RNA polymerase binds to the __________.

RNA polymerase binds to the __________.

• A. Operator
• B. Enhancer
• C. Promoter
• D. Terminator

Answer: (C)

RNA polymerase binds to the promoter to initiate transcription. The promoter is the DNA region just upstream of a gene that signals the polymerase where to start and which direction to read. In bacteria, the promoter contains specific sequences recognized by RNA polymerase (with the help of sigma factor), guiding the enzyme to begin RNA synthesis. The other elements have different roles: the operator is a site for repressors to block transcription, the enhancer helps increase transcription by boosting promoter activity (without the polymerase binding directly to the enhancer), and the terminator marks where transcription ends.

RNA polymerase binds to the promoter to initiate transcription. The promoter is the DNA region just upstream of a gene that signals the polymerase where to start and which direction to read. In bacteria, the promoter contains specific sequences recognized by RNA polymerase (with the help of sigma factor), guiding the enzyme to begin RNA synthesis. The other elements have different roles: the operator is a site for repressors to block transcription, the enhancer helps increase transcription by boosting promoter activity (without the polymerase binding directly to the enhancer), and the terminator marks where transcription ends.