Transcription and Regulation
Rho-dependent termination of transcription in E. coli

requires about 50 nucleotides of uncomplexed mRNA
both (a) and (b)
requires ATP
removes mRNA and holoenzyme from the DNA

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Transcription and Regulation
The major function of RNA polymerase's sigma factor is

recognition of the transcriptional start sequence
recognition of the translational stop sequence
recognition of the transcriptional stop sequence
recognition of the translational start sequence

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