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  • Question
  • The size of viruses is usually measured in


  • Options
  • A. centimeters
  • B. micrometers
  • C. nanometers
  • D. millimeters

  • Correct Answer
  • nanometers 


  • Viruses problems


    Search Results


    • 1. In order for a virus to replicate

    • Options
    • A. the capsid must enter the host cell cytoplasm
    • B. the host cell must be undergoing mitosis
    • C. the genome must be released in the cytoplasm
    • D. the host cell must lack a cell membrane
    • Discuss
    • 2. Enzyme neuraminidase is carried by which of the following viruses?

    • Options
    • A. Human immunodeficiency virus
    • B. Epstein-Barr virus
    • C. Influenza virus
    • D. Adenovirus
    • Discuss
    • 3. Which of the following viruses belong to family Flaviviridae?

    • Options
    • A. Rubella virus
    • B. Yellow fever virus
    • C. Hepatitis C virus
    • D. All of these
    • Discuss
    • 4. Enveloped viruses have a __________ shape.

    • Options
    • A. icosahedral
    • B. helical
    • C. roughly spherical
    • D. complex
    • Discuss
    • 5. The viral DNA is removed from the host's chromosomes and the lytic cycle occurs. The process is called

    • Options
    • A. spontaneous induction
    • B. inductive infection
    • C. resultant induction
    • D. spontaneous infection
    • Discuss
    • 6. The __________ of the influenza-enveloped virus appear to be involved in attachment to the host cell receptor site.

    • Options
    • A. fimbriae
    • B. flagellae
    • C. hemagluttinin
    • D. neuraminidase
    • Discuss
    • 7. Which family has received most interest in their development as a biological control agent against insects?

    • Options
    • A. Reoviridae
    • B. Baculoviridae
    • C. Iridoviridae
    • D. Poxviridae
    • Discuss
    • 8. Viral RNA is replicated in the host cell

    • Options
    • A. cytoplasmic matrix
    • B. nucleus
    • C. mitochondria
    • D. lysozomes
    • Discuss
    • 9. Intracellular structures formed during many viral infections, called __________ , which can directly disrupt cell structure.

    • Options
    • A. prokaryotes
    • B. chromosomal disruptions
    • C. inclusion bodies
    • D. cytocidal bodies
    • Discuss
    • 10. Which of the following is the agent associated with the development of neurodegenerative disease in livestock and humans?

    • Options
    • A. Prions
    • B. Viroids
    • C. virions
    • D. Virinos
    • Discuss


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