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MCQs

Total Questions : 463 | Page 36 of 47 pages
Question 351. Which of the following may affect proteins and nucleic acids, but not viruses?
  1.    Denaturation
  2.    Enzyme treatment
  3.    Pressure
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 352. In the simplest capsid, there is a capsomere at each of the 12 vertices; this capsomere, which is surrounded by five other capsomeres, is termed a
  1.    icosahedral
  2.    penton
  3.    polyhedra
  4.    helical
 Discuss Question
Answer: Option B. -> penton
Question 353. Which of the following viruses belong/s to family caliciviridae?
  1.    Hepatitis E virus
  2.    Hepatitis D virus
  3.    Hepatitis B virus
  4.    All of these
 Discuss Question
Answer: Option A. -> Hepatitis E virus
Question 354. Lysozyme (an endolysin) which will lyse the bacterial cell, releasing the mature virions is present in
  1.    late genes
  2.    immediate early phage genes
  3.    delayed early genes
  4.    all of these
 Discuss Question
Answer: Option A. -> late genes
Question 355. The temperate phage that have no site specificity for insertion and may even be able to insert multiple copies of their DNA into a single bacterial chromosome is
  1.    λ DNA
  2.    Phage Mu
  3.    λ phage enzyme
  4.    Phage Mn
 Discuss Question
Answer: Option B. -> Phage Mu
Question 356. Enzyme neuraminidase is carried by which of the following viruses?
  1.    Influenza virus
  2.    Adenovirus
  3.    Human immunodeficiency virus
  4.    Epstein-Barr virus
 Discuss Question
Answer: Option A. -> Influenza virus
Question 357. Which of the following is continuous cell line?
  1.    HeLa
  2.    All of these
  3.    HEp-2
  4.    KB
 Discuss Question
Answer: Option B. -> All of these
Question 358. The size of viruses is usually measured in
  1.    nanometers
  2.    micrometers
  3.    centimeters
  4.    millimeters
 Discuss Question
Answer: Option A. -> nanometers
Question 359. The repressor protein, since the cell is resistant to lysis from externally infecting phage, is also called
  1.    none of these
  2.    immunity repressor
  3.    operon repressor
  4.    immunity operon
 Discuss Question
Answer: Option B. -> immunity repressor
Question 360. Which of the following virus is susceptible to chloroform?
  1.    Herpes
  2.    All of these
  3.    Measles
  4.    Influenza
 Discuss Question
Answer: Option B. -> All of these

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