2 years ago

Various sigma factors play a role in gene expression by.

1 answer:

8 0

Answer:

Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene.

Put simply - Helps RNA Polymerase do it's job.

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