Biol 2107 Reading Guide Chapter 19 1. List and describe the structural components of viruses. 2. Explain why viruses are obligate intracellular parasites. 3. Explain how a virus identifies its host cell. 4. Distinguish between the lytic and lysogenic reproductive cycles, using phage λ as an example. 5. Describe the reproductive cycle of an enveloped virus. 6. Describe the reproductive cycle of an HIV retrovirus. 7. List some characteristics that viruses share with living organisms and explain why viruses do not fit our usual definition of life.
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