MCQs on Viruses.

Multiple Choice Questions (MCQs) on Chapter Viruses.

MCQs on Viruses.

Quiz

  

Atttempt as many times u like within 45 minutes.

 

1. Which of the following is a characteristic of animal virus as compared to a bacteriophage,
   1.   Head
   2.   Nucleic acid
   3.   Tail
   4.   Envelope
2. Which part of animal viruses is derived from the cell membrane of the host cell.
   1.   Nucleic acid
   2.   Envelope
   3.   Capsid
   4.   All of the above.
3. Nearly all plant viruses contain ___ as nucleic acid.
   1.   RNA
   2.   DNA
   3.   mRNA
   4.   Both DNA and RNA.
4. Which of the following drug is effective against CoronaVirus,
   1.   Remedesivir
   2.   Tetracycline
   3.   Griseofulvin
   4.   Penicilline
5. Viruses can be cultivated best in which of the following media,
   1.   Blood Agar.
   2.   Liquid media with serum.
   3.   Enrichment media.
   4.   Media with living cells.
6. First human disease identified with viral etiology.
   1.   Plague
   2.   Smallpox
   3.   Rabies
   4.   Yellow fever
7. The structurally complete viral particle able to induce infection is called?
   1.   Prion
   2.   Virion
   3.   Viroid
   4.   All of the above
8. The function of “early proteins” produced by viral nucleic acid is / are,
   1.   Shutting down host macromolecule production.
   2.   Production of Viral nucleic acid
   3.   Only b
   4.   Both a & b.
9. The assembly of newly formed viral particles inside the host cell is called,
   1.   Attachment
   2.   Penetration
   3.   Synthesis of viral components
   4.   Maturation
10. The laboratory technique in which the naked viral nucleic acid is injected inside the host cell is called,
    1.   Infection
    2.   Transfection
    3.   Inoculation
    4.   None of the above
11. After penetration the empty viral particle remaining attached on the host cell is called as,
    1.   Ghost
    2.   Capsule
    3.   Sheath
    4.   Demon
12. The life cycle of bacteriophage which doesn't result in lysis of host cell is called,
    1.   Lytic phase.
    2.   Virulent phase.
    3.   Lysogenic phase
    4.   Temperate phase.
13. The life cycle of bacteriophage which result in lysis of host cell is called,
    1.   Lytic phase.
    2.   Virulent phase.
    3.   Lysogenic phase.
    4.   Temperate phase.
14. The mRNA responsible for production of viral components is,
    1.   Early mRNA.
    2.   Late mRNA.
15. The subunits of viral protein coat are called as,
    1.   Capsid
    2.   Capsomer
    3.   Capacitance
    4.   Capstanthine
16. The protein coat covering viral nucleic acid is called,
    1.   Envelope
    2.   Sac
    3.   Capsid
    4.   Capsomer
17. Viruses contain which nucleic acidas genome?
    1.   DNA
    2.   RNA
    3.   Both DNA & RNA
    4.   DNA or RNA.
18. Which of the following viruses exceptionally contains both DNA as well as RNA?
    1.   Pox Virus
    2.   Corona Virus.
    3.   Leuko Virus
    4.   None of the above
19. Which of the following has a complex symmetry,
    1.   Rabies virus
    2.   T4 Phage
    3.   Pox virus
    4.   Tobacco mosaic virus
20. Which of the following is an example of “Helical Virus”.
    1.   Pox Virus
    2.   Influenza Virus.
    3.   Rabies virus.
    4.   None of the above
21. Bacteriophages contain which of the following nucleic acids?
    1.   DNA
    2.   RNA
    3.   DNA and RNA both
    4.   mRNA
22. Zoophaginae contain which of the following nucleic acids?
    1.   DNA
    2.   RNA
    3.   DNA and RNA both
    4.   DNA or RNA
23. The spike like projections on virus are called as,
    1.   Peplomers
    2.   Capsomers
    3.   Virions
    4.   Prions
24. Which of the following is the function of Capsid.
    1.   Protection
    2.   Antigenicity
    3.   Both a & b
    4.   None of the above.
25. The Yield of bacteriophage per bacterial cell is called,
    1.   Burst Size
    2.   Latency
    3.   Rise
    4.   None of the above.