Virology: RNA and DNA Viruses
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Questions and Answers

What is the primary characteristic that distinguishes RNA viruses from DNA viruses?

  • The use of DNA-dependent DNA polymerase
  • The presence of single-stranded DNA
  • The presence of RNA as their genetic material (correct)
  • The ability to infect only animal cells

    • Which of the following forms of RNA viruses is capable of directly acting as mRNA?

  • Single-stranded DNA
  • Positive-sense single-stranded RNA (correct)
  • Double-stranded RNA
  • Negative-sense single-stranded RNA

    • What is the mechanism by which RNA viruses enter the host cell?

  • Exocytosis and diffusion
  • Lysosome-mediated engulfment
  • Phagocytosis and pinocytosis
  • Fusion and endocytosis (correct)

    • What is the primary purpose of interrupting the viral replication cycle in developing therapeutic strategies?

    <p>To prevent the spread of RNA viruses to other cells</p> Signup and view all the answers

    What is the term for the process by which the virus releases its RNA into the cytoplasm of the host cell?

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

    What is the role of the host cell's machinery in the replication of RNA viruses?

    <p>To replicate the viral RNA</p> Signup and view all the answers

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