Which of the Following Might Decrease the Transcription of Only

Which of the following might decrease the transcription of only one specific gene in a bacterial cell?

A) a decrease in the amount of sigma factor
B) a decrease in the amount of RNA polymerase
C) a mutation that introduced a stop codon into the DNA that precedes the gene's coding sequence
D) a mutation that introduced extensive sequence changes into the DNA that precedes the gene's transcription start site

Correct Answer:

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