gene regulation by repression

______ competes for binding to the promoter with the repressor

RNAP (RNA Polymerase)

repressors

gene products (proteins) that are often constitutively expressed

repressors often interact with ligands called ______ to relieve repression

inducers

repressors are _____ regulators

negative

repressors bind to to the promoter or operator sites of genes to block ________

transcription