Viral Classification and Replication Presentation
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Questions and Answers

Which of the following best defines virology?

  • The study of viruses and virus-like agents, including their taxonomy, disease-producing properties, cultivation, and genetics (correct)
  • The study of parasites
  • The study of bacteria
  • The study of fungi

    • What is the meaning of the term 'virus'?

  • Toxin (correct)
  • Bacteria
  • Parasite
  • Fungus

    • What are virus particles made up of?

  • Genetic material only
  • Protein only
  • Lipids and carbohydrates
  • Genetic material and protein (correct)

    • What term describes viruses as agents that require a host cell for replication?

    <p>Obligate intracellular parasites</p> Signup and view all the answers

    What do viruses vary in?

    <p>Size and shape</p> Signup and view all the answers

    What does virology often consider itself a part of?

    <p>Microbiology or pathology</p> Signup and view all the answers

    What are the two main components of a virus?

    <p>Protein and Genome</p> Signup and view all the answers

    Which type of symmetry is exhibited by the Influenza virus?

    <p>Helical (spiral) symmetry</p> Signup and view all the answers

    Which type of virus infects bacterial cells?

    <p>Bacteriophage</p> Signup and view all the answers

    What is the geometric shape of an icosahedral structure?

    <p>12 corners (vertices), 20 sides (facets), and 30 edges</p> Signup and view all the answers

    Which type of viral classification is based on the chemical composition and mode of replication?

    <p>Baltimore classification</p> Signup and view all the answers

    What distinguishes complex symmetry viruses from helical or icosahedral viruses?

    <p>They are composed of separate capsomeres with separate shape and symmetry</p> Signup and view all the answers

    What is the role of the protein component (capsid) in a virus?

    <p>To protect the genome</p> Signup and view all the answers

    Which type of virus infects plants by invading plant cells?

    <p>Plant viruses</p> Signup and view all the answers

    What is the function of the envelope in a virus?

    <p>To help in viral attachment and entry into host cells</p> Signup and view all the answers

    Which classification system is based on the host range of a virus?

    <p>Host range classification</p> Signup and view all the answers

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