RNA polymerase-part 1
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Biochemistry video- RNA polymerase;RNA polymerase in action. The structure includes a very small RNA polymerase that is made by the bacteriophage T7, shown here with blue tubes. A small transcription bubble, composed of two DNA strands and an RNA strand, is bound in the active site. Notice how the two DNA strands form a double helix at the top of the picture. The enzyme separates them in the middle and builds an RNA strand using the DNA on the right. Finally, at the bottom, the two DNA strands come back together.
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