Viral Genome and Capsid Quiz
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Questions and Answers

What is the term used for viruses that lack an envelope?

  • HIV viruses
  • Herpes viruses
  • Naked viruses (correct)
  • Enveloped viruses
  • Which component of a virus surrounds the genetic material?

  • Nucleic acids
  • Virion
  • Enveloped proteins
  • Capsid (correct)
  • Which type of virus has a capsid with 20 triangular faces and 12 vertices?

  • Complex virus
  • DNA virus
  • Helical virus
  • Icosahedral virus (correct)
  • Why are viruses not considered living organisms?

    <p>They cannot replicate on their own</p> Signup and view all the answers

    Which type of virus has a capsid with a central cavity or a hollow tube made of proteins?

    <p>Helical virus</p> Signup and view all the answers

    What induces the host cell to synthesize viral components in the intracellular state of a virus?

    <p>Nucleic acids</p> Signup and view all the answers

    What is the function of the capsid in a virus?

    <p>Protects the viral genome</p> Signup and view all the answers

    What is an envelope in a virus derived from?

    <p>Host cell's phospholipid membrane</p> Signup and view all the answers

    Which type of virus doesn't have cytoplasmic membrane, cytosol, or functional organelles?

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

    How do viruses replicate and produce more viral molecules?

    <p>Invade other cells and use their metabolic machinery</p> Signup and view all the answers

    In the extracellular state, what is a virus called?

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

    Which term refers to the protein coat surrounding the nucleic acid core in a virus?

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

    Which type of virus has a capsid structure combining both helical and icosahedral components?

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

    Why do mutations occur more frequently in RNA viruses than DNA viruses?

    <p>RNA polymerases in RNA viruses lack proofreading mechanisms</p> Signup and view all the answers

    Which virus shape is characterized by a geometric shape with 20 equilateral triangular faces?

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

    What is the primary genetic material found in viruses?

    <p>Both DNA and RNA equally</p> Signup and view all the answers

    Which virus shape is characterized by a helical capsid structure forming a cylindrical shape?

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

    What contributes to the higher likelihood of genetic mutations in RNA viruses during replication?

    <p>Error-prone nature of DNA replication</p> Signup and view all the answers

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