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1. The smallest known agent of a plant disease is:

 
 
 
 

2. Who among the following discovered virus?

 
 
 
 

3. D.C. Gajdusek was awarded the Nobel Prize for discovery of prion based diseases in:

 
 
 
 

4. The site where the protein coat of virus is synthesized is:

 
 
 
 

5. Prions are pathogens that are thought to consist solely of:

 
 
 
 

6. Who named prion?

 
 
 
 

7. Virion refers to:

 
 
 
 

8. Longest known virus is:

 
 
 
 

9. Genetic material of TMV is:

 
 
 
 

10. What is a vector?

 
 
 
 

11. The genetic material of poxvirus is:

 
 
 
 

12. The truncated cone of HIV consists of:

 
 
 
 

13. Bacteriophage consists of:

 
 
 
 

14. First animal pathogenic virus was discovered by:

 
 
 
 

15. Detailed study of bacteriophage was made by:

 
 
 
 

16. Viruses have:

 
 
 
 

17. Infective nature of Tobacco mosaic disease was discovered by:

 
 
 
 

18. RNA particle causing symptoms like that of a virus disease are known as:

 
 
 
 

19. The lambda phase is a:

 
 
 
 

20. Number of capsomeres forming capsid of TMV is:

 
 
 
 

21. The first to isolate a plant virus was:

 
 
 
 

22. In order to label the coat alone but not the nucleic acid the bacteriophage should be grown on E. coli cells previously cultured on a medium containing:

 
 
 
 

23. The capsid of TMV is made-up of nearly:

 
 
 
 

24. Infective part of virus was discovered by:

 
 
 
 

25. In a bacteriophage, DNA is present in:

 
 
 
 

26. Which of the following is true for viruses?

 
 
 
 

27. AIDS (= Acquired Immune Deficiency Syndrome) is caused by:

 
 
 
 

28. Certain enzymes like reverse transcriptase, integrase and protease are found in:

 
 
 
 

29. The virus responsible for AIDS is an example of a (an):

 
 
 
 

30. Which of the following disease is caused by virus?

 
 
 
 

31. Smallpox is caused by:

 
 
 
 

32. Group of viruses, which attack members of Myxophyceae are termed as:

 
 
 
 

33. Name the scientist who called viruses as “Contagium vivum fluidum”:

 
 
 
 

34. Cyanophage is a virus that attacks:

 
 
 
 

35. In which of the following, RNA is double stranded:

 
 
 
 

36. Viruses are commonly transmitted in plants through:

 
 
 
 

37. Chrysanthemum stunt disease and potato spindle tuber disease are caused by:

 
 
 
 

38. Enzymes are absent in:

 
 
 
 

39. Which is an exception to cell theory?

 
 
 
 

40. TMV was isolated in crystalline form by:

 
 
 
 

41. Bacteria differ from viruses in being sensitive to:

 
 
 
 

42. Viroids have:

 
 
 
 

43. Who discovered cyanophages?

 
 
 
 

44. Which of the following is correct regarding AIDS causative agent HIV? (NEET 2016)

 
 
 
 

45. An infectious agent associated with certain mammalian degenerative disease that is composed solely of protein, is known as:

 
 
 
 

46. Yellow vein Mosaic of Bhindi Virus (Hibiscus Virus-I) is transmitted through:

 
 
 
 

47. Infective portion of a virus is nucleic acid, this was discovered by:

 
 
 
 

48. In which of the following, RNA is the genetic material?

 
 
 
 

49. Virus and bacteriophage are made-up of:

 
 
 
 

50. Viruses are considered to be:

 
 
 
 

51. Bacteriophages have been used as:

 
 
 
 

52. Interferon is a:

 
 
 
 

53. The fact that best supports the concept that viruses are living is that viruses:

 
 
 
 

54. Which of the following protein is associated with prion disease?

 
 
 
 

55. In Herpes virus DNA is:

 
 
 
 

56. A substance (a low molecular weight protein) produced by host cells in response to viral infection, that protects other cells against further viral infection is:

 
 
 
 

57. Kuru, a human disease is caused by:

 
 
 
 


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