Translation initiation sequencesS can cause different open reading frames to be translated differently. 1. Differences in mRNA levels BETWEEN operons Different promoters might have different DNA 2....

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Extracted text: Translation initiation sequencesS can cause different open reading frames to be translated differently. 1. Differences in mRNA levels BETWEEN operons Different promoters might have different DNA 2. Differences in protein levels WITHIN an operon sequences The secondary structures of MRNA can differ which can change the rate of degradation of transcripts.