Virology L1
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Questions and Answers

What is a virologist?

Someone who studies viruses

What is virology?

The study of viruses and viral diseases

What is the primary focus of veterinary virology?

  • The study of bacteria in humans
  • The study of viruses in plants
  • The study of viruses in non-human animals (correct)
  • The study of fungi in livestock

Why is the study of veterinary virology considered important?

<p>Viruses cause high rates of mortality and financial losses in the livestock and poultry industries (D)</p> Signup and view all the answers

What is the structure of a virus?

<p>A nucleic acid genome surrounded by a protein coat, sometimes with a lipid envelope (B)</p> Signup and view all the answers

How do viruses generate energy and proteins?

<p>By relying on the host cell (C)</p> Signup and view all the answers

Which of the following statements is true about viruses?

<p>Viruses are obligate intracellular parasites (B)</p> Signup and view all the answers

What happens to viruses outside a living cell?

<p>They remain inert or dormant particles (C)</p> Signup and view all the answers

How do viruses reproduce inside a host cell?

<p>By hijacking the host cell machinery to assemble new virus particles (A)</p> Signup and view all the answers

Match the definition to the correct term

<p>Virus = Broad general terminology. This includes the infectious (virion) or inactivated virus particle, or viral nucleic acid and protein in the infected cell. Virion = Mature virus that consists of RNA or DNA with a protein coat; extracellular infective form of a virus Viroid = Not a virus, only consists of small circular RNA, lacks the protein coat Free bee = Free bee</p> Signup and view all the answers

History of virology: match the discovery to correct historian

<p>Dmitri Ivanovski = Used chamberland filter and discovered tobacco mosaic virus (1st virus to pass through filter) Louis Pasteur = Rabies vaccination Edward Jenner = 1st vx, inoculation of cowpox matter in a body and cured small pox Charles chamberland = Invented Chamberland filter- which had pores smaller than bacteria; pioneered the discovery of viruses</p> Signup and view all the answers

History of Viruses: match discovery to the historian

<p>Peyton Rous = Isolated the 1st tumor causing animal virus (oncogenic virus—Rous Sarcoma virus) Walter Reed = Discovered yellow fever is transmitted through mosquitoes Friedrich Loeffler and Paul Frosh = Passed the first ANIMAL virus through a filter and discovered Foot and Mouth disease Ernst Ruska and Max Knoll = Invention of electron microscope</p> Signup and view all the answers

Which virus was the first to be successfully propagated in an embryonated egg?

<p>Fowlpox virus (D)</p> Signup and view all the answers

Who contributed to the culture of isolated mammalian cells?

<p>Sanford (C)</p> Signup and view all the answers

What significant contribution did Enders make to virology?

<p>Growth of poliovirus in cell culture (B)</p> Signup and view all the answers

Dulbecco and Vogt are known for developing which method ?

<p>A plaque assay for the first animal virus-poliovirus (B)</p> Signup and view all the answers

What is the only animal disease that has been declared globally eradicated?

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

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