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 (A)</p> Signup and view all the answers

What do viruses vary in?

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

What does virology often consider itself a part of?

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

What are the two main components of a virus?

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

Which type of symmetry is exhibited by the Influenza virus?

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

Which type of virus infects bacterial cells?

<p>Bacteriophage (C)</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 (B)</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 (A)</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 (A)</p> Signup and view all the answers

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

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

Which type of virus infects plants by invading plant cells?

<p>Plant viruses (A)</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 (D)</p> Signup and view all the answers

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

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

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