Which of the Following Statements Best Describes the Role Of \sigma

question 16

Multiple Choice

Which of the following statements best describes the role of $\sigma$ factors in bacterial gene expression?

• A)" \(\sigma\) factors determine which RNA polymerase is used during transcription."
• B)" \(\sigma\) factors mediate the excision of intronic sequences."
• C)" \(\sigma\) factors can be used to express certain genes necessary based on cell type."
• D)" \(\sigma\) factors bind to the TATA box and initiate transcription."
• E)"none of the above"