hello there, im new 
ive been on bos for a while but ive only lurked. but i just cant finish this assignment for mblg so i decided to make an account and ask you guys.
so the question is on transcription:
Giving 3 examples, explain how different sigma factors allow the expression of particular sets of genes under special circumstances.
i know that you need sigma factors for RNA synthesis but thats about it. ive tried looking it up on the internet about this but there isnt much information.
could someone explain in english? lol thanks.
ive been on bos for a while but ive only lurked. but i just cant finish this assignment for mblg so i decided to make an account and ask you guys.
so the question is on transcription:
Giving 3 examples, explain how different sigma factors allow the expression of particular sets of genes under special circumstances.
i know that you need sigma factors for RNA synthesis but thats about it. ive tried looking it up on the internet about this but there isnt much information.
could someone explain in english? lol thanks.