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Genetics Biology Part 2 : Molecular Biology, DNA/RNA Structure, Replication, Transcription, Translation & Evolution
Question 17 / 70
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MOL-017
RNA polymerase in prokaryotes — what subunits does it have and what is the function of sigma factor?
A. Two identical subunits; sigma destroys RNA
B. Core enzyme (α₂ββ'ω) + sigma factor (σ) = holoenzyme; sigma factor recognizes PROMOTER sequences
C. Single subunit; sigma factor proofreads
D. Four identical subunits; sigma factor assists translation
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