RNA Viruses in Virology

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Questions and Answers

What is the consequence of a productive infection in a host cell?

  • No viral replication
  • Cell death and disease signs (correct)
  • Stable host condition
  • Viral latency

In the context of ssDNA viruses, what does the flow of information typically involve?

  • Protein → mRNA → DNA
  • RNA → Protein
  • DNA → mRNA → Protein (correct)
  • DNA → Protein

What is the role of a double-stranded replicative form (RF) in ssDNA viruses?

  • Manufacture viral proteins
  • Promote cell survival
  • Destroy dsRNA in cells
  • Serve as a template for viral genome copies (correct)

Which type of animal viruses do not utilize dsRNA in any of their processes?

<p>Double-stranded RNA viruses (B)</p> Signup and view all the answers

What happens if the viral genome of a latent infection is reactivated?

<p>Productive infection results (B)</p> Signup and view all the answers

In ssDNA viruses, what needs to be manufactured first when the viral genome is the same base sequence as the mRNA?

<p>Complementary DNA strand (D)</p> Signup and view all the answers

For minus-strand DNA viruses, how is the viral genome used to produce mRNA?

<p>By converting it to RNA first (B)</p> Signup and view all the answers

What happens in a host cell if a double-stranded RNA virus infects it?

<p>Systems in the cell eliminate dsRNA (B)</p> Signup and view all the answers

What is the main difference between ssDNA plus-strand and minus-strand DNA viruses regarding mRNA production?

<p>Plus-strand viruses produce mRNA directly from their genome (C)</p> Signup and view all the answers

What is the key outcome of viral genome reactivation in a latent infection of neurons?

<p>Development of disease signs (C)</p> Signup and view all the answers

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