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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which of the following contribute in polypeptide synthesis:
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The correct answer is  Enhancer is the cis-acting DNA sequence that increases the rate of inhibition of transcription of eukaryotic genes by RNA polymerase. Leader sequence: The untranslated segment of mRNA before the sta codon. Ref: Harper, 28th Edition, Page 343