Asslmau Alaikum dear friends’ In this article I’m sharing PARC jobs, NARC jobs, and agriculture plant pathology MCQs for written test-2024 for the post of scientific officer and assistant scientific officer.
1. Phylum Plasmodiophoromycetes (Lower fungi) belong to the kingdom
a) Chromista b) Protozoa c) Eumycota d) Mycota
2. The cell wall of the mycelium of true fungi (Eumycota) contains
a) Glucan + cellulose b) Glucan + chitin c) Glucan d) Peptidoglycon
3. Mycosphaerella musicola produces asci within
a) Perithecium b) Apothecium c) Locules d) Clestothecium
4. The teleomorphic stage of Cercospora is
a) Glomorella b) Cochliobolus c) Mycospaherella d) Pleospora
5. Fungi belonging to order Sphaeropsidales produces conidia in
a) Pycnidium b) Acervulus c) Synemmata d) Sporodochium
6. Parasexuality was first discovered by
a) Pontecarvo b) Erikson c) De Bary d) Robert Koch
7. The total mass of nucleoprotein of different virus particles vary from
a) 1-3 million Da b) 4.6 to 73 million Da c) 50-100 million Da d) 10-40 million Da
8. An example of virus containing ds DNA
a) Caulimovirus b) Gemini virus c) Tobravirus d) Potyvirus
9. The protein subunits of TMV consists of
a) 260 amino acids b) 58 amino acids c) 158 amino acids d) 200 amino acids
10. Multiplication of virus occurs in
a) Epidermal cells b) Plasmodesmata c) Phloem vessels d) xylem vessels
11. In the peptidoglycon of the bacterial cell wall the two sugar molecules are connected by
a) Peptide Cross links b) Glycosidic bond c) H-bond d) S-H bond
12. Porins are present in bacterial cell wall component
a) LPS layer b) EPS layer c) Cytoplasmic membrane d) Plasma membrane
13. Dolipore septum is found in
a) ascomycetes b) zygomycetes c) basidiomycetes d) deuteromycetes
14. A computer software system called Field Runner is used to
a) Measuring chlorophyll content in infected plant b) Recording the flight of insect vectors c) Sampling plants for disease d) Measuring photosynthetic rate of plants
15. Isomerase enzyme patterns in fungal cell is used for
a) Differentiating races b) Differentiating strains (Biotypes) c) Measuring spore density d) Differentiating species
16. Remote sensing for detecting and controlling disease severity is used in the following altitudes
a) 2 b) 3 c) 5 d) 6
17. The computerized disease assessment training programme is
a) DISTRAIN b) LOPAT c) DAS-ELISA d) EPIDEM
18. Measuring the size of the minute objects (spores) in a microscope is known as
a) Pathometry b) Micrometry c) Turbidometry d) Microtomy
19. Nutritionally, fungi may be best characterized as
a) photosynthetic autotrophs b) chemosynthetic autotrophs c) absorptive heterotrophs d) ingestive heterotrophs
20. Viruses enter the plant cells through the process of
a) Osmosis b) Pinocytosis c) Diffusion d) Plasmolysis
21. Sugarcane ratoon stunting is caused by
a) Phytoplasmas b) Viroids c) Cavibacter xyli sub sp xyli d) Virus
22. Blotter test is used in
a) Seed health testing b) Seed viability c) Seed purity test d) Seed rate
23. Hyperplasia refers to
a) Increased cell division b) Cell death c) Cell enlargement d) Decreased cell division
24. An internally seed borne fungal disease
a) Smut of Ragi b) Red rot of Sugarcane c) Loose smut of Wheat d) Grain smut of Jowar
25. An example of a soil fumigant
a) Thiram b) Methyl bromide c) Bavistin d) Vitavax
PARC Jobs, NARC-Jobs, Agriculture Plant Pathology MCQs for Written Test-2024 for the Post of Scientific Officer and Assistant Scientific Officer
26. Significant contribution on the epidemiology of disease cycle of stem rust of Wheat was made by
a) Mehta. K.C b) Mundkur. B.B c) Payak.M.M d) Nagarajan
27. Moko disease of Banana is caused by
a) Fusarium oxysporium f sp. Cubense b) Radopholus similis c) Ralstonia solanacearum d) Pentalonia nigranervosa
28. Blast of Rice is caused by
a) Magnaporthe grisea b) Drechslera oryzae c) Ephelis oryzae d) Rhizoctonia solani
29. The number of races of Phytophothora infestans prevalent in India is
a) 250 b) 82 c) 5 d) 130
30. Effective fungicide for the control of blast disease of Rice
a) Mancozeb b) Tricyclazole c) Fosteyl Al d) Plantvax
31. Fungus with dichotomously branched sporangiophores at acute angles with curved pointed tips on which conidia are borne belong to
a) Perenospora b) Pesedoperenospora c) Bremia d) Sclerospora
32. Cleistothecium containing several asci bearing definite rigid appendages with coiled tips is characteristic of genus
a) Uncinula b) Erysiphe c) Sphaerotheca d) Phyllactinia
33. Diseases which interferes with the conduction of water in plants
a) Wilts b) Rots c) Leaf spots d) Damping off
34. Tumours/galls induced by Agrobacterium tumefaciens occur due to
a) Cytokinin production b) Harmonal imbalance c) Production of Agrocin-84 d) Enzymes
35. Gemini viruses contain
a) ds RNA b) ss DNA c) ds DNA d) ss RNA
36. Phytoplasmas contain
a) RNA only b) DNA only c) RNA+ DNA d) RNA or DNA
37. Bacterial cell wall is made up of
a) Peptidoglycon b) Chitin c) Flagellin d) Lipopolysaccharide
38. The genetic material in a bacterial cell is
a) A nucleoid region b) Definite nucleus c) Mitochondria d) Mesosome
39. Gamme is found in the members of
a) saprolegniales b) chytridilales c) plasmodiophorales d) lagenidiales
40. Agrocin-84 is a
a) Antibiotic b) Bacteriocin c) Phenolic compound d) Enzyme
41. International Mycological Institute is located at
a) England b) USA c) Netherlands d) India
42. The most significant reason why fungi are not in the kingdom Plantae is that fungi
a) are chemoorganotrophic heterotrophs b) are procaryotes c) have unicellular and multi-cellular forms d) are eucaryotes
43. Brine floatation method is followed to control
a) Loose Smut of Wheat b) Tundu disease of Wheat c) Grain smut of Jowar d) Rice blast
44. MLO and Spiroplasma are mostly
a) Xylem inhibiting b) Phloem inhibiting c) Both (a) and (b) d) Stomata inhibiting
45. Panama disease of banana is caused by
a) Fusarium oxysporium f sp. Cubense b) Ralstonia solanacearum c) Radopholus similis d) Pentalonia nigranervosa
46. Flagellation in Pseudomonas
a) Lophotrichous b) Monotrichous c) Peritrichous d) Amphitrichous
47. Hemelia vastatrix causes
a) Bean rust b) Coffee leaf rust c) Yellow rust of wheat d) Sunflower rust
48. The number of races of Hemelia vastatrix recorded in the World
a) 32 b) 8 c) 4 d) 24
49. Nonmotile spores are characteristics of
a) Zygomycetes b) Chytridiomycetes c) Myxomycetes d) Oomycetes
50. Internally seed borne bacterial disease
a) Black rot of cabbage b) Soft rot of carrot c) Pierce disease of Grapes d) Citrus canker
PARC Jobs, NARC-Jobs, Agriculture Plant Pathology MCQs for Written Test-2024 for the Post of Scientific Officer and Assistant Scientific Officer
51. NEPO viruses are transmitted by
a) Xiphinema index b) Trichodorus sp c) Pythium ultimum d) Meloidogyne
52. Potato spindle tuber disease is caused by
a) Viroid b) Phytoplasma c) Spiroplasma d) Virus
53. Most widely used fungicide for rust fungi
a) Vitavax b) Plantvax c) Bavistin d) Dithane M-45
54. Which spore is on a club and results from the fusion of two nuclei from different
strains of the same fungi?
a) Ascospore b) basidiospore c) blastospore d) conidiospore
55. Streptomycin antibiotic affect
a) Protein synthesis b) Nucleic acid synthesis c) Electron transport d) Mitochondria
56. Hypersensitive reaction occurs due to
a) Accumulation of Phytoalexins b) Action of host specific toxin c) Action of pectolytic enzymes d) Accumulation of Phytoanticipins
57. Parasexuality occurs
a) within heterokaryotic hyphae b) between dikaryotic hyphae c) between homokaryotic hyphae d) between heterokaryotic hyphae
58. The Indian Phytopathological society was started by
a) B.B.Mundkur b) Coleman c) E.J.Butler d) Kirtikar
59. Purification of TMV in crystalline form by
a) Stanley b) Bawden c) Gibbs and Harrisons d) Albert Mayer
60. Monograph on the Genus Fusarium is authored by
a) C.Booth b) C.J.Alexopolous c) E.Subramaniam d) E.Chupp
61. Basidiospores are borne on the ends of
a) primary mycelia b) basidiocarps c) trichogynes d) sterigmata
62. Host plant on which Wheat rust fungus produces telial stage is known as
a) Alternate host b) Primary host c) Collateral host d) Secondary host
63. NETU viruses are transmitted by
a) Xiphinema b) Trichodorus c) Longidorous d) Paralongidorus
64. Stylet-borne viruses are
a) Non persistent b) Circulative c) Persistent d) Propagative
65. Who advanced the Gene for gene concept of disease and resistance and susceptibility
a) Biffen and Orton b) Flor c) Vander plank d) Gaumann
66. Fungi causing Downy mildew diseases are differentiated on the basis of
a) Sporangiophore character and germination of sporangia b) Teliospore characters c) Appendages attached to the cleistothecia d) Conidia characters
67. Most of the Plant viruses contain
a) RNA b) DNA c) Both RNA + DNA d) None
68. The famous Irish famine of 1842 was caused due to the outbreak of
a) Helminthosporiose of rice b) Stem rust of Wheat c) Late blight of potato d) Downy mildew of Grapes
69. Sulphur fungicides are very effective in the control of
a) Anthracnose disease b) Powdery mildews c) Wilts d) Downy mildews
70. Concentration of sodium chloride used for sterilisation
a) 0.1% b) 10% c) 0.5% d) 1 %
71. Ragi variety resistant to neck blast
a) GPU-28 b) Indaf-9 c) Indaf-5 d) MTU-22
72. Oomycetes are distinguished from fungi by all of the characteristics below except
a) source of nutrition b) spore motility c) cellulose walls d) pattern of mitosis
73. Fungal hyphae with two genetically distinct nuclei are said to be
a) heterokaryotic b) monokaryotic c) dikaryotic d) karyotic
74. Bunchy top of Banana is transmitted by
a) Bemisia tabaci b) Pentalonia nigranervosa c) Myzus persicae d) Aphis gossypii
75. A typical long cycled rust fungus produces during its life cycle
a) 5 spore forms b) 2 spore forms c) 4 spore forms d) 3 spore forms
PARC Jobs, NARC-Jobs, Agriculture Plant Pathology MCQs for Written Test-2024 for the Post of Scientific Officer and Assistant Scientific Officer
76. Puccinia graminis tritici produces the following spore from on Barberry vulgaris
a) Pycnia + Aecia b) Only aecia c) Only pycnia d) Uredial + Telial
77. The main source of inoculum for Xanthomonas citri pv.citri causing citrus canker
a) Bacteria present in soil in infected plant parts b) Bacteria carried through seeds c) Infected twigs and old lesions on the standing tree d) Alternate host
78. Erwinia caratovora sub sp caratovora causing soft rot of vegetables produces
a) Pectolytic enzymes b) Growth harmones c) Toxins d) Polyssacarides
79. The number of races of Ralstonia solanacearum recorded in the World
a) 5 b) 2 c) 3 d) 8
80. Agrobacterium tumefaciens enters the plants through
a) Stomata b) Wounds c) leaf hairs d) Hydathodes
81. Systemic fungicide used for the control of Powdery mildew disease
a) Calixin b) Vitavax c) Sulphur dust d) Bavistin
82. Late blight of potato can be controlled by spraying
a) Ridomil MZ b) Dithane Z-78 c) Captan d) Ipridione
83. Seed treatment fungicide for the control Downy mildew disease of Sunflower
a) Apron 35 SD b) Sulphur wettable powder c) Thiram d) Plantvax
84. Tomato leaf curl can be controlled by spraying
a) Mancozeb b) Triazophos (Hostathion) c) Ridomil MZ d) Tricyclazole
85. Blast of paddy is caused by
a) Pyricularia oryzae b) Drechslera oryzae c) Ephelis oryzae d) Sclerotium oryzae
86. Boicontrol agent used for the control of Collar rot of plants caused by Rhizoctonia solani
a) Pasteuria penetrans b) Pseudomonas fluorescence c) Trichoderma virida d) Bacillus subtilis
87. The term Virus was coined by
a) Adolf Meyer b) Stanley c) Beijerinck d) Ivanowski
88. Bacteriophage is
a) Naked single stranded RNA particle b) A Virus infecting bacteria c) A virus infecting eukaryotic cell d) Animal virus
89. A virus particle is composed of
a) Only nucleic acid b) only protein c) Nucleic acid+ protein d) Nucleic acid or protein
90. Bacteriophages are used for forecasting the incidence of
a) Tungro disease of Rice b) Bacterial blight of Paddy c) Blast of Paddy d) Brown spot of rice
91. Phytoplasmas are transmitted in nature through insect vectors
a) Mites b) Plant hoppers c) Aphids d) Leaf hoppers
92. The fruiting body of a mushroom is called
a) sorocarps b) basidiocarps c) ascocarps d) plasmodiocarp
93. Solar heat treatment of seeds is recommended for the control of
a) False smut of Paddy b) loose smut of Wheat c) Downy mildew of ragi d) Grain smut of sorghum
94. The fungus responsible for ergotism belongs to which of the following fungal
divisions?
a) Ascomycota b) Basidiomycota c) Deuteromycota d) Zygomycota
95. Water molds belong to which division?
a) Ascomycota b) Basidiomycota c) Chytridiomycota d) Oomycota
96. Late blight of Potato is caused by
a) Alternaria solani b) Phytophthora infestans c) Synchytrium endobioticum d) Septoria lycopersici
97. Ralstonia solanacearum causes
a) Wilting of tomato b) Tomato leaf curl c) Bunchy top of Banana d) Soft rot of potato
98. Barbery vulgaris is the alternative host for
a) Hemelia vastatrix b) Puccinia recondita c) Puccinia graminis tritici d) Melampsora lini
99. Which of the following is not a kingdom in the five-kingdom system
a) monera b) algae c) protista d) plant
100. A simple spherical shape describes a bacterial cell known as
a) coccus b) vibrio c) bacillus d) spiral