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MCQs

Total Questions : 44 | Page 2 of 5 pages
Question 11. Which of the following viruses are icosahedrons?
  1.    Filamentous virus
  2.    Complex virus
  3.    Simple virus
  4.    Isometric virus
 Discuss Question
Answer: Option D. -> Isometric virus
Answer: (d).Isometric virus
Question 12. The Baltimore classification was based on the importance of ____________
  1.    DNA
  2.    mRNA
  3.    rRNA
  4.    tRNA
 Discuss Question
Answer: Option B. -> mRNA
Answer: (b).mRNA
Question 13. Which of the following class contains all viruses that have dsDNA genomes?
  1.    Class I
  2.    Class II
  3.    Class III
  4.    Class IV
 Discuss Question
Answer: Option A. -> Class I
Answer: (a).Class I
Question 14. Class III of Baltimore classification contains viruses with __________
  1.    dsDNA
  2.    dsRNA
  3.    ssRNA
  4.    ssDNA
 Discuss Question
Answer: Option B. -> dsRNA
Answer: (b).dsRNA
Question 15. Which of the following class consists of ambisense viruses?
  1.    Class 5
  2.    Class 7
  3.    Class 2
  4.    Class 4
 Discuss Question
Answer: Option A. -> Class 5
Answer: (a).Class 5
Question 16. Who discovered viruses?
  1.    Beijerinck
  2.    Iwanowski
  3.    Twort
  4.    Ellerman
 Discuss Question
Answer: Option B. -> Iwanowski
Answer: (b).Iwanowski
Question 17. The one-step growth curve was used to study ____________
  1.    the development of viral assays
  2.    the discovery of viruses
  3.    the multiplication of viruses
  4.    the origin of viruses
 Discuss Question
Answer: Option C. -> the multiplication of viruses
Answer: (c).the multiplication of viruses
Question 18. The bacteriophages were discovered by ____________
  1.    Beijerinck
  2.    Iwanowski
  3.    Twort
  4.    Ellerman
 Discuss Question
Answer: Option C. -> Twort
Answer: (c).Twort
Question 19. Who reported the cell-free transmission of chicken leukemia?
  1.    Ellerman and Bang
  2.    Loeffler and Frosch
  3.    Iwanowski and Beijerinck
  4.    Twort and Bang
 Discuss Question
Answer: Option A. -> Ellerman and Bang
Answer: (a).Ellerman and Bang
Question 20. Which of the following is not the phase of the one-step growth curve?
  1.    Eclipse phase
  2.    Maturation phase
  3.    Latent phase
  4.    Luteal phase
 Discuss Question
Answer: Option D. -> Luteal phase
Answer: (d).Luteal phase

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