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1. Most primitive embryophytes are placed in :

 
 
 
 

2. Which of the following does not help in penetration of pathogen into the host?

 
 
 
 

3. Which of the following organisms has characters of both animals and plants?

 
 
 
 

4. Vascular tissue is found in :

 
 
 
 

5. Late blight of potato is caused by :

 
 
 
 

6. The disease symptom necrosis refers to :

 
 
 
 

7. Bryophyta have been placed in cryptogams because:

 
 
 
 

8. Which one of the following is a monocot?

 
 
 
 

9. Smut of maize is caused by :

 
 
 
 

10. A disease is abnormal state that may result due to :

 
 
 
 

11. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to :

 
 
 
 

12. When a diseased plant is legally stopped from export, this is done under :

 
 
 
 

13. The disease occurring more or less regularly from year to year in a particular locality is referred to as :

 
 
 
 

14. Which of the following causes smut disease in cultivated plants?

 
 
 
 

15. Multicellular and jacketed sex organs are found in :

 
 
 
 

16. Woody climbers are known as :

 
 
 
 

17. If a disease appear on large scale after a long interval it is :

 
 
 
 

18. A diseased leaf shows some areas with dead tissue. This symptom is often referred to as :

 
 
 
 

19. Citrus canker is caused by :

 
 
 
 

20. Roots are absent in :

 
 
 
 

21. Mixed cropping helps :

 
 
 
 

22. Small epidermal swellings due to infection are called :

 
 
 
 

23. Aflatoxin is produced as a product in :

 
 
 
 

24. Maximum diversity of life forms occurs in :

 
 
 
 

25. Green plants are classified as :

 
 
 
 

26. The tallest living gymnosperm tree in the world belongs to :

 
 
 
 

27. Etiology includes the study of :

 
 
 
 

28. Disease resistant plant varieties can be produced by :

 
 
 
 

29. Ovary is absent in :

 
 
 
 

30. According to Woese, fungi were placed in the domain :

 
 
 
 

31. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called :

 
 
 
 

32. Which of the following statements is not correct?

 
 
 
 

33. Pteridophytes are also known as :

 
 
 
 

34. A perennial that bears flowers and fruits once in a life time is known as :

 
 
 
 

35. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a :

 
 
 
 

36. Red rot of sugarcane is caused by :

 
 
 
 

37. When an infection is very wide in occurrence, it is called :

 
 
 
 

38. Rice, pea, potato are :

 
 
 
 

39. Which of the following is not a fungal disease?

 
 
 
 

40. In plants, the substances which accumulate around the site of infection are :

 
 
 
 

41. A branch of science that deals with nature, symptoms, development and control of plant diseases is called :

 
 
 
 

42. Embryo formation is not known in :

 
 
 
 

43. Which of the following is the kingdom of multicellular producers?

 
 
 
 

44. Embryophyta includes :

 
 
 
 

45. Leaves of pea show white powdery patches due to the growth of fungal mycelium with conidia and conidiophores. These are the symptoms of :

 
 
 
 

46. The inability of a plant to resist the effects of a pathogen or any other damaging factors is known as :

 
 
 
 

47. Which are non-seed-bearing vascular plants?

 
 
 
 

48. Seeds are characteristically found in :

 
 
 
 

49. A part of pathogen that is transmitted to the host is termed as :

 
 
 
 

50. Leaf spot of groundnut is caused by :

 
 
 
 

51. The smut mycelium which initiates the infection is usually :

 
 
 
 

52. The pathogen that causes covered smut of Sorghum is :

 
 
 
 

53. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

54. Downy mildew disease is caused by :

 
 
 
 

55. Gymnosperms could also be called as:

 
 
 
 

56. When the seeds are borne on megasporophylls and are not enclosed in a fruit, the plant belongs to :

 
 
 
 

57. Which of the following is a monocot?

 
 
 
 

58. Club moss is the common name of :

 
 
 
 

59. Vascular cryptogam is the term used for :

 
 
 
 

60. Red rot of sugarcane is caused by :

 
 
 
 

61. Which part of the plant is not affected by Albugo?

 
 
 
 

62. Pythium debaryanum is the causative agent of:

 
 
 
 

63. Propagating materials like seeds, tubers, grafts and bulbs can be kept free of pathogens by :

 
 
 
 

64. Which group of plants is called “Amphibians of Plant World”?

 
 
 
 

65. Which of the following is not a correct match?

 
 
 
 

66. The plants with soft and delicate stems, about a meter tall are known as :

 
 
 
 

67. Which of the following does not contain chlorophyll?

 
 
 
 

68. The scientist who is famous for his research on rust fungi in India is :

 
 
 
 

69. Which one of the following belong to cryptogams only:

 
 
 
 

70. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

71. Who is known as ‘Father of Taxonomy’?

 
 
 
 

72. Liverworts are included in :

 
 
 
 

73. Atracheata term has been used by Oswald Tippo for :

 
 
 
 

74. Club moss and Peat moss belong to:

 
 
 
 

75. Spermatophyta are characterized by producing:

 
 
 
 

76. Oswald Tippo’s classification is:

 
 
 
 

77. In which group would you place a plant that reproduces by spores, develops embryo but plant body remains undifferentiated into root, stem and leaves?

 
 
 
 

78. Quarantine regulations are concerned with:

 
 
 
 

79. The causal organism of early blight of potato is :

 
 
 
 

80. Which of the following are included in Tracheophyta?

 
 
 
 

81. Which of the following is the most destructive enemies of mankind?

 
 
 
 

82. There are some dead and corky areas with definite margins on the stem, branches and fruits of lemon. This disease should be :

 
 
 
 

83. In which of the following plants would you place heterotrophs like slime moulds, rusts, mushrooms, etc.?

 
 
 
 

84. Chief constituents of bordeaux mixture are :

 
 
 
 

85. Which of the following plants does not belong to Embryophyta?

 
 
 
 

86. Which of the following is not a viral disease?

 
 
 
 

87. Cryptogams include :

 
 
 
 

88. A control measure prior to the appearance of a particular disease comes under :

 
 
 
 

89. Ergot is obtained from :

 
 
 
 

90. Oswald Tippo’s classification was based on :

 
 
 
 

91. Fruits are not found in :

 
 
 
 

92. Body disorders due to harmful physiological changes are known as :

 
 
 
 

93. Chemicals which are applied soon after the outset of infection, suppress the development of pathogen, thus curing the plant, are called :

 
 
 
 

94. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

95. Which among the following is a shrub?

 
 
 
 

96. All but one group are included in tracheophyta; which group is this :

 
 
 
 

97. Banana bunchy top is caused by :

 
 
 
 

98. Ovules are not found enclosed in ovary in :

 
 
 
 

99. An excessive enlargement of diseased organ because of increase in the number of cells is called :

 
 
 
 

100. Black rust of wheat is caused by:

 
 
 
 

101. There is a class of phenolic compounds produced by the host plant in response to fungal infections :

 
 
 
 


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