Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

multisubunit enzymes
only active inside the cell
interchangable with DNA polymerases
highly glycosylated in their active forms

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Transcription and Regulation
The function of the sigma factor of RNA polymerase is to

assure that transcription begins at the proper point
assure that translation begins at the proper point
assure that transcription ends at the proper point
assure that translation ends at the proper point

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