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Total Questions : 463 | Page 45 of 47 pages
Question 441. . The function of a viral capsid is
  1.    protection against the viral genome from physical and enzymatic destruction
  2.    providing binding sites that enable the virus to attach to specific receptor sites on the host cell
  3.    serving as a vehicle of transmission from one host to another
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 442. . Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?
  1.    Bateriophage M13
  2.    Bateriophage MV-L2
  3.    Bateriophage T2
  4.    Bateriophage T4
 Discuss Question
Answer: Option A. -> Bateriophage M13
Question 443. . 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.    eclipse period
  2.    rise period
  3.    latent period
  4.    burst size
 Discuss Question
Answer: Option A. -> eclipse period
Question 444. . Inclusion bodies of measles virus are
  1.    intracytoplasmic
  2.    intranuclear
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 445. . The most efficient way to enclose a space is within a/an
  1.    sphere
  2.    cube
  3.    icosahedron
  4.    helix
 Discuss Question
Answer: Option C. -> icosahedron
Question 446. . Which of the following oncogenic viruses was first detected?
  1.    Rous sarcoma virus.
  2.    Epstein-Barr virus
  3.    Herpes simplex virus type 2
  4.    Human T cell leukaemia virus
 Discuss Question
Answer: Option A. -> Rous sarcoma virus.
Question 447. . Which of the following viruses are relatively thermostable?
  1.    Human immunodeficiency virus
  2.    Rubella virus
  3.    Hepatits A virus
  4.    Influenza virus
 Discuss Question
Answer: Option C. -> Hepatits A virus
Question 448. . The yield of phage per bacterium is called the
  1.    eclipse size
  2.    latent size
  3.    burst size
  4.    none of these
 Discuss Question
Answer: Option C. -> burst size
Question 449. . Virus reproduces in living cells by
  1.    replication
  2.    duplication
  3.    multiplication
  4.    all of these
 Discuss Question
Answer: Option A. -> replication
Question 450. . The time from infection until lysis is called as
  1.    eclipse period
  2.    rise period
  3.    latent period
  4.    burst size
 Discuss Question
Answer: Option C. -> latent period

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