Question: How do coactivators and corepressors mediate expression? Group of answer choices by blocking RNA polymerase binding by modifying histones by acetylation by inhibiting intron splicing

How do coactivators and corepressors mediate expression?
Group of answer choices
by blocking RNA polymerase binding
by modifying histones by acetylation
by inhibiting intron splicing
a and b
b and c

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