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Unformatted text preview: ii. Lysogenic cycle 1. Integrates its nucleic acid with bacterial DNA a. By recombination 2. Now every time bacteria divides, the virus DNA gets copied a. Prophage – hides in bacterial chromosome b. Lysogenic bacteria 3. If environment for bacteria is not favorable, the phage DNA pops out (activates) and starts the lytic cycle IV.Gene Regulation in Prokaryotes a. Inducible systems: Substrate of a metabolic pathway (inducer) interacts with a regulatory protein (repressor)—repressor cannot bind to operator— allowing transcription. Catabolic pathways i. Inducible systems control catabolic pathways (turned on when substrate is present) b. Repressible system: Product of a metabolic pathway (corepressor) interacts with a regulatory protein (repressor) allowing it to bind to operator, blocking transcription. Anabolic pathways i. Repressible systems control anabolic pathways (turned on when product is not present)....
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- Spring '08
- DNA, Capsid, phage life cycle, time bacteria divides