Viral Genomes: Single-Stranded vs Double-Stranded Nucleic Acids
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Questions and Answers

What is a characteristic of positive sense RNA viruses?

  • The genome needs to be transcribed into negative sense RNA
  • The replication occurs with the aid of DNA polymerase
  • The genetic material is the antisense strand of the viral mRNA
  • The genetic material is viral mRNA that encodes for proteins (correct)

    • Which of the following viruses is an example of a negative sense RNA virus?

  • Coxsackie virus
  • Echovirus
  • Influenza virus (correct)
  • Polio virus

    • What is a characteristic of negative sense RNA viruses?

  • The genome can be directly translated into proteins
  • The genome is double-stranded
  • The genome needs to be transcribed into positive sense RNA (correct)
  • The genome is single-stranded DNA

    • What is the function of RNA-dependent RNA polymerase in negative sense RNA viruses?

    <p>To transcribe the genome into positive sense RNA</p> Signup and view all the answers

    Which of the following is a type of single-stranded RNA virus?

    <p>All of the above</p> Signup and view all the answers

    What is the primary difference between positive and negative sense RNA viruses?

    <p>The sense of the genome</p> Signup and view all the answers

    What is the name of the strand that can be readily translated into proteins in positive sense RNA viruses?

    <p>Plus-strand</p> Signup and view all the answers

    Which of the following is NOT a characteristic of positive sense RNA viruses?

    <p>The genome is double-stranded RNA</p> Signup and view all the answers

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