What direction does the RNA polymerase move during transcription (left to right or right to left)?

What direction does the RNA polymerase move during transcription (left to right or right to left)?

Consider the following diagram of a bacterial genome (only a portion is shown). Note that Show more Question 1 Consider the following diagram of a bacterial genome (only a portion is shown). Note that there is a single origin of replication (Ori) and that directly to the right of Ori there is a promoter driving the expression of a protein-coding gene (GENE1) whose start codon ATG is indicated. a) When GENE1 is transcribed into RNA from the promoter which strand A or B acts as the template for transcription (A or B)? What direction does the RNA polymerase move during transcription (left to right or right to left)? b) Highly expressed genes near GENE1 are usually oriented in the same direction as GENE1 (i.e. the promoter points in the same direction as that for GENE1). Why? Show less
 

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