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MCQs

Total Questions : 196 | Page 2 of 20 pages
Question 11. Bacterial ropiness in milk is caused by
  1.    slimy capsular material from the cells usually gums or mucins
  2.    slimy capsular material from the cells usually proteins
  3.    slimy capsular material from the cells usually lipids
  4.    all of the above
 Discuss Question
Answer: Option A. -> slimy capsular material from the cells usually gums or mucins
Answer: (a).slimy capsular material from the cells usually gums or mucins
Question 12. Fishiness in butter is caused by
  1.    Aeromonas hydrophila
  2.    Pseudomonas synxantha
  3.    Pseudomonas syncyanea
  4.    none of these
 Discuss Question
Answer: Option A. -> Aeromonas hydrophila
Answer: (a).Aeromonas hydrophila
Question 13. The technique first described to determine the incipient spoilage in meat was
  1.    homogenate extract volume (HEV)
  2.    agar Plate Count (APC)
  3.    extract Release Volume (ERV)
  4.    none of the above
 Discuss Question
Answer: Option C. -> extract Release Volume (ERV)
Answer: (c).extract Release Volume (ERV)
Question 14. The chief type of spoilage in sweetened condensed milk may be
  1.    gas formation by sucrose fermenting yeasts
  2.    thickening caused by micrococci
  3.    mold colonies growing on the surface
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 15. Which of the following is responsible for a musty or earthy flavor?
  1.    Actinomycetes
  2.    Flavobacterium
  3.    both (a) and (b)
  4.    Pseudomonas syncyanea
 Discuss Question
Answer: Option A. -> Actinomycetes
Answer: (a).Actinomycetes
Question 16. Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms?
  1.    Somatic recombination of heavy and light chains
  2.    Expression of several different capsule types
  3.    Changing the receptor binding canyon that docks with the host receptor
  4.    Reassortment of RNA segments from different influenza viruses
 Discuss Question
Answer: Option D. -> Reassortment of RNA segments from different influenza viruses
Answer: (d).Reassortment of RNA segments from different influenza viruses
Question 17. Which type of interferon is produced by virus-infected cells?
  1.    α
  2.    β
  3.    Both (a) and (b)
  4.    None of these
 Discuss Question
Answer: Option C. -> Both (a) and (b)
Answer: (c).Both (a) and (b)
Question 18. The nucleocapsid is covered by an outer membrane like structure called
  1.    envelope
  2.    covering
  3.    membronocapsid
  4.    all of these
 Discuss Question
Answer: Option A. -> envelope
Answer: (a).envelope
Question 19. Fluorescence microscopy can be used for the diagnosis of
  1.    Subacute sclerosing panencephalitis
  2.    Herpes simplex encephalitis
  3.    Rabies
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 20. Viral matrix proteins are
  1.    exposed on the surface of the virus
  2.    found mainly on naked viruses
  3.    anchor the envelope of enveloped viruses
  4.    part of the nucleoprotein core of viruses
 Discuss Question
Answer: Option C. -> anchor the envelope of enveloped viruses
Answer: (c).anchor the envelope of enveloped viruses

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