Messenger RNA (mRNA) is the product of transcription, which is the process of creating an equivalent polynucleotide that can be brought outside the nucleus for the translation process. This transcription process is initiated by an active promoter.
Which of the following is NOT correct regarding mRNA?
A. All mRNAs have 5' untranslated regions
B. All mRNAs contain a promoter 5' (upstream) of the transcription start site
C. Bacterial transcription is terminated, in part, by the formation of a stem-loop (or hairpin), 2º structure in the mRNA
D. All mRNAs encode proteins
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