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Unformatted text preview: Key Concepts Topic 15: Regulation of Gene Expression in Viruses and Prokaryotes 1.) Why arent viruses affected by antibiotics? 2.) Be familiar with the lytic and lysogenic life cycles of viruses. What are the nasty things that happen once a virus initiated the lytic cycle? Which host cell enzymes and structure would be co-opted by the virus? 3.) What are sources of genetic variation in viruses? 4.) How do the life cycles of the influenza and HIV viruses compare? Which is considered virulent? 5.) How do viruses get into cells? What particular problem do plant viruses face? 6.) Specifically, what host cell structures and enzymes are co-opted by the virus? 7.) In the NPR audio essay, Flu Attack, a lot of non-technical terms are used. Lets apply the concepts and vocabulary youve learned so far this semester to being more precise. 1. The keys on the virus are surface proteins (sometimes referred to as antigen); what are the locks on the throat cells? What is the name for what happens when the key and lockthe locks on the throat cells?...
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This note was uploaded on 11/08/2010 for the course BIO 181 taught by Professor Jorstad during the Fall '07 term at University of Arizona- Tucson.
- Fall '07