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MCQs

Total Questions : 463 | Page 38 of 47 pages
Question 371. What kind of embryo is often used for viral assays?
  1.    Cat
  2.    Rat
  3.    Mouse
  4.    Chicken
 Discuss Question
Answer: Option D. -> Chicken
Question 372. The infected cells continue to reproduce themselves as well as the virus, and the mature virions are extruded from the cell surface continuously over a long period of time. This type of release mechanism is called a
  1.    all of these
  2.    resultant infection
  3.    productive infection
  4.    inductive infection
 Discuss Question
Answer: Option C. -> productive infection
Question 373. The envelope of an enveloped virus is derived from
  1.    the cell membrane
  2.    the mitochondrion of the cell
  3.    the endoplasmic reticulum of the cell
  4.    none of these
 Discuss Question
Answer: Option A. -> the cell membrane
Question 374. Inclusion bodies of measles virus are
  1.    both (a) and (b)
  2.    intranuclear
  3.    intracytoplasmic
  4.    none of these
 Discuss Question
Answer: Option A. -> both (a) and (b)
Question 375. Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?
  1.    Bateriophage T4
  2.    Bateriophage T2
  3.    Bateriophage MV-L2
  4.    Bateriophage M13
 Discuss Question
Answer: Option D. -> Bateriophage M13
Question 376. The most efficient way to enclose a space is within a/an
  1.    sphere
  2.    helix
  3.    cube
  4.    icosahedron
 Discuss Question
Answer: Option D. -> icosahedron
Question 377. During the first 10 minutes after injection of phage DNA, no phage can be recovered by disrupting the infected bacterium. This is termed as
  1.    burst size
  2.    latent period
  3.    rise period
  4.    eclipse period
 Discuss Question
Answer: Option D. -> eclipse period
Question 378. The function of a viral capsid is
  1.    serving as a vehicle of transmission from one host to another
  2.    All of these
  3.    protection against the viral genome from physical and enzymatic destruction
  4.    providing binding sites that enable the virus to attach to specific receptor sites on the host cell
 Discuss Question
Answer: Option B. -> All of these
Question 379. Which of the following viruses are relatively thermostable?
  1.    Human immunodeficiency virus
  2.    Influenza virus
  3.    Hepatits A virus
  4.    Rubella virus
 Discuss Question
Answer: Option C. -> Hepatits A virus
Question 380. Virus reproduces in living cells by
  1.    replication
  2.    multiplication
  3.    all of these
  4.    duplication
 Discuss Question
Answer: Option A. -> replication

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