A promoter is a
Show Hint
- Sequence on the DNA recognised by RNA Polymerase to initiate transcription.
- Sequence on the RNA where ribosomes bind to initiate translation.
- Sequence at the 3'-end for the DNA transcription termination.
- Sequence on an RNA for protein binding.
The Correct Option is A
Solution and Explanation
Step 1: Concept
Transcription is the process of copying a DNA sequence into RNA, which requires a specific starting point.
Step 2: Meaning
A promoter is a specific regulatory DNA sequence located upstream (5') of a gene.
Step 3: Analysis
It serves as the binding site for RNA polymerase and necessary transcription factors to correctly orient the enzyme and begin RNA synthesis.
Step 4: Conclusion
Thus, it is the DNA recognition site for transcription initiation. Final Answer: (A)
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