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Lesson 2 Study Guide Viruses What are they made of? Nucleic Acid (Genetic Material) DNA or RNA; double or single stranded Protein cover called a Capsid Some have an envelope but not all Not living – no cells Specific to the host Four shapes Filamentous Icosahedral Enveloped Head and tail Name and describe the steps of a viral infection. Attachment_______________ Entry___________________ Replication & Assembly__________________________ E-Grass or Release______________________ A bacteriophage is a virus that infects bacteria. Describe the lysogenic cycle for a bacteriaphage? What is the lytic cycle? Animal viruses may cause acute disease, chronic infection, or intermittent symptoms. Give examples of each of these types of viral infection . Vaccines are the best method of controlling viral disease. What is an attenuated vaccine? If a live vaccine is more effective than a dead vaccine, what is the danger of using a live vaccine?
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Why does a flu shot not last for your entire life?
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