<a href="https://en.wikipedia.org/wiki/T7_RNA_polymerase" class="extiw" title="en:T7 RNA polymerase">T7 RNA polymerase</a> <a href="https://en.wikipedia.org/wiki/Abortive_initiation" class="extiw" title="en:Abortive initiation">abortive initiation</a> cycle
Luis E Ramirez-Tapia
CC BY-SA 3.0
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