ch. 13

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example of post-translational regulation of enzymes

allosteric control or covalent modification
usual state of repressible genes

ON
usual state of inducible genes

OFF
what is an operon?

includes promoter, operator and structural genes
structural genes code for...

non-regulatory proteins
B-galactosidase is an example of

an inducible gene
what is constitutive expression?

code for proteins that are needed on a regular basis
what happens at the promoter?

RNA polymerase binds here before beginning of transcription
what binds the operator?

repressor/regulatory protein
how is trp operon turned off?

co-repressor binds operator; stopping transcription

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251486

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ch. 13

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chapter 13 review

Updated

2013-12-07T19:11:15Z

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