Q.1
Who discovered viruses?
  • a) Beijerinck
  • b) Iwanowski
  • c) Twort
  • d) Ellerman
Q.2
Who reported the cell-free transmission of chicken leukemia?
  • a) Ellerman and Bang
  • b) Loeffler and Frosch
  • c) Iwanowski and Beijerinck
  • d) Twort and Bang
Q.3
The bacteriophages were discovered by ____________
  • a) Beijerinck
  • b) Iwanowski
  • c) Twort
  • d) Ellerman
Q.4
The one-step growth curve was used to study ____________
  • a) the development of viral assays
  • b) the discovery of viruses
  • c) the multiplication of viruses
  • d) the origin of viruses
Q.5
Which of the following is not the phase of the one-step growth curve?
  • a) Eclipse phase
  • b) Maturation phase
  • c) Latent phase
  • d) Luteal phase
Q.6
Which of the following phase measures the period before the infectious virus is released into the medium?
  • a) Eclipse phase
  • b) Luteal phase
  • c) Latent phase
  • d) Maturation phase
Q.7
Who isolated TMV in paracrystalline form?
  • a) Stanley
  • b) Bawden
  • c) Pirie
  • d) Schlessinger
Q.8
The genetic material of bacteriophage T2 is __________
  • a) RNA
  • b) DNA
  • c) Carbohydrate
  • d) Protein
Q.9
Viruses do not have a protein coat.
  • a) True
  • b) False
Q.10
Which of the following phase determines the specificity of the virus?
  • a) Penetration
  • b) Attachment
  • c) Release
  • d) Uncoating
Q.11
Virus possesses spikes composed of carbohydrates.
  • a) True
  • b) False
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