Viral Genome Replication Quiz
28 Questions
2 Views

Viral Genome Replication Quiz

Created by
@MindBlowingJade

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is NOT a function of viral capsids?

  • Genetic recombination (correct)
  • Viral genome packaging
  • Stimulation of the host immune system
  • Protection from UV radiation

    • Which families of viruses have a pericapsid?

  • Both naked and enveloped viruses
  • All families of viruses have a pericapsid
  • Naked viruses (correct)
  • Enveloped viruses

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

  • It acts as a template for the synthesis of messenger RNA (correct)
  • It is not present in negative-sense RNA viruses
  • It mediates the binding and penetration of the virus inside the host cell
  • It protects the viral genome from physical and enzymatic damages

    • Which viral enzyme is responsible for synthesizing new molecules of viral genome from the template of (+) RNAs?

    <p>RNA-dependent RNA-polymerase</p> Signup and view all the answers

    What is the function of (+) RNAs produced from the integrated DNA in the host genome?

    <p>Serve as both mRNAs for translation and templates for the synthesis of new molecules of viral genome</p> Signup and view all the answers

    What is the structure of riboviruses with diploid genome?

    <p>Two linear single-stranded RNA molecules with a positive polarity linked at the extremity 5’ together forming a dimer</p> Signup and view all the answers

    Which viruses require a DNA-dependent DNA polymerase to replicate their genome?

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

    Which RNA viruses have a complete linear RNA genome that acts as mRNA and is translated into a viral polyprotein?

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

    What is the role of RNA-dependent RNA polymerase in riboviruses with negative RNA genome?

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

    Which viruses induce the progression of the cell cycle from the G1 to the S phase to use the cellular DNA polymerase?

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

    What is the difference between a productive and an abortive infection?

    <p>Productive infection leads to viral particle production, while abortive infection does not produce viral particles</p> Signup and view all the answers

    What is viral tropism?

    <p>The ability of the virus to recognize specific receptors and infect specific cell types</p> Signup and view all the answers

    How is gene expression carried out in DNA viruses of the 1st group?

    <p>Gene expression occurs in the nucleus through the cellular enzyme RNA polymerase II</p> Signup and view all the answers

    What is the replicative strategy of Parvoviruses for the synthesis of mRNAs?

    <p>Synthesis of the complementary DNA strand followed by gene expression by the cellular RNA polymerase II</p> Signup and view all the answers

    Which enzyme is responsible for synthesizing new molecules of viral genome from the template of (+) RNAs in retroviruses?

    <p>Reverse transcriptase</p> Signup and view all the answers

    What is the function of the genomic RNA in retroviruses?

    <p>To be used for the synthesis of new (+) RNAs</p> Signup and view all the answers

    Which enzyme is responsible for integrating the viral DNA into the host genome in retroviruses?

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

    Which family of DNA viruses encodes for its own DNA polymerase?

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

    Which type of RNA viruses has a complete linear RNA genome that acts as mRNA?

    <p>Positive-sense RNA viruses</p> Signup and view all the answers

    Which virus requires the host cell's DNA polymerase for replication?

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

    Which type of ribovirus has a segmented double-stranded RNA genome?

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

    What is the main function of viral capsids?

    <p>To protect nucleic acids from physical and enzymatic damages</p> Signup and view all the answers

    What is the role of pericapsid in certain families of viruses?

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

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

    <p>To synthesize new molecules of viral genome from the template of (-) RNAs</p> Signup and view all the answers

    Which of the following is a requirement for a cell to be infected by a virus?

    <p>The cell must be permissive</p> Signup and view all the answers

    What is the difference between a productive and an abortive infection?

    <p>A productive infection leads to the production of viral particles, while an abortive infection results in no production of viral particles</p> Signup and view all the answers

    What is the period between the penetration of virus into cells and the maturation of viral progeny called?

    <p>Period of eclipse</p> Signup and view all the answers

    Which of the following viruses has an ion channel protein in its envelope that causes acidification of endocytic vesicles containing the virus?

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

    More Like This

    Viral Genome Structure and Evolution Quiz
    54 questions

    Viral Genome Structure and Evolution Quiz

    ComfortableComprehension avatar
    ComfortableComprehension
    Viral Capsids and Symmetry Quiz
    10 questions

    Viral Capsids and Symmetry Quiz

    EventfulProtactinium avatar
    EventfulProtactinium
    Understanding Capsid Classification in Virology
    30 questions

    Understanding Capsid Classification in Virology

    HolyOnyx3708 avatar
    HolyOnyx3708
    Genome and Capsid Structure of Viruses
    17 questions

    Genome and Capsid Structure of Viruses

    AmiableCitrine2293 avatar
    AmiableCitrine2293
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser