Mycology and Plant Pathology 90+ Solved MCQs

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1. Ascosporesare present in each ascus of Ascomycotina

A. 5

B. 8

C. 9

D. 8

2. Hyphalfungi and andmammalian parasites are include in Taphrinomycotina

A. Lung

B. Heart

C. Intenstine

D. None

3. Which are the character of Protomycetales

A. Thick walled resting spore from the diploid mycelium

B. Intercellular

C. The member of this class cause lesions, galling of fruits, stem

D. All

4. Members of which division are called as

Slime molds:

A. Myxomycota

B. Ascomycota

C. Both

D. None

5. ……….Class is called as acellular slime molds

A. Ascomycetes

B. Myxomycetes

C. Both

D. None

6. Myxomycetes are found on:

A. Moist soil

B. Decaying wood

C. Dung

D. All

7. Plasmodium of physarum polycephalum is:

A. Bright yellow

B. Red

C. Pink

D. Orange

8. yeast reproduce asexually by:

A. Budding

B. Fission

C. Both

D. None

9.  ………is used in fermentation process:

A. Yeast

B. Amanita

C. Mushroom

D. None

10. Zygomycetes reproduce sexually by producing sexual spore called:

A. Ascospores

B. Zygospores

C. Basidiospores

D. All

11. Hyphae of zygomycetes are:

A. Septate

B. Asepate

C. Coenocytic

D. Both b&c

12. Zygomycetes can reproduce:

A. Sexually

B. A sexually

C. Both

D. None

13.The a- sexual spores of zygomycetes are called:

A. Zygospores

B. Sporangiospores

C. Both

D. None

14.Fungi are:

A. Eukaryotic

B. Heterotrophs

C. Multicellular

D. All

15. Molds have cell wall made up of ;

A. Chitin

B. Cellulose

C. Both

D. None

16.The thread like structures that make the body of fungus are called:

A. Hyphae

B. Filaments

C. Out growths

D. Trichomes

17. NO conidia are formed in

A. Mycelia sterilia

B. Mycelium

C. Torulopsis

D. Aspergillus

18. which genus of deuteromycota incites thrush disease

A. Torulopsis

B. Candida

C. Penicillium

D. None

19.  Synnema is group of

A. Spores

B. Sporangia

C. Conidia

D. One

20. the top of the synnema is much

A. Branched

B. Straight

C. United

D. False

21. types of asexual spores are

A. Microconidia

B. Blastospores

C. Arthrospors

D. All above

22. what does a blasto mean?

A. A seed

B. A leave

C. A bud

D. None

23. classification of deuteromycete include

A. Color

B. Shape

C. Separation of conidia

D. All above

24. Spores are formed in flask shape in order

A. Sphaeropsidales

B. Bryophytes

C. Melanconiales

D. None

25. deuteromycota includes how many species over

A. 20900

B. 20000

C. 21000

D. 22000

26. Visible effects of disease on plants are called ————

A. Symptoms

B. Sign

C. Clues

D. All

27. The parasitic organism that cause a disease is a ———–

A. Host

B. Pathogen

C. Both

D. None

28. Which one of these lack chlorophyll

A. Algae

B. Plants

C. Fungi

D. All

29. All are viral diseases except

A. Influenza

B. Polio

C. Rabies

D. Epilepsy

30. Pathogens enter a host through———

A. Natural opening

B. Wounds

C. Penetrating directly into the plant

D. All

31. Sexual reproduction in chytridiomycotta is———

A. Isogamous

B. Anisogamous

C. Oogamous

D. All

32. In chytridiales—————–is loosely aggregated around the nuclei that is not enclosed in a nuclear cap.

A. Motochondria

B. Ribosomes

C. Endoplasmic reticulumn

D. Centrioles

33. The gametothallus is a ———–thallus which produces female and male gametangia when mature.

A. Haploid

B. Diploid

C. Both

D. None

34. In Blastocladiales female attracting hormone is produced by the male.This hormone has been named——-

A. Sirenin

B. Parisin

C. Paksirin

D. All

35. ———-is responsible for the worldwide amphibian decline.

A. Basidiomycota

B. Ascomycota

C. Chytridiomycota

D. Myxomycota

36. The class basidiomycetes include the members that produce their ____ in a basidiocarp.

A. Basidia

B. Basidiospores

C. Both

D. None

37. The _______ will be used as representative of the basidiomycete life cycle.

A. Mushroom life cycle

B. Algea life cycle

C. Lichens life cycle

D. Fungi life cycle

38. Plant patogens has objectives to study _______ causes of diseases

A. Biotic

B. A biotic

C. Mesobiotic

D. All

39. The study of nature,cause and prevention of plant disease called

A. Plant disorder

B. Plant pathogens

C. Plant disability

D. Plant cancer

40. Phytopathology is a science whicj deals with

A. Plant disease

B. Plant pathogens

C. Plant disability

D. Plant cancer

41. Who developed the 1st microscope

A. Leeouwenhoek

B. Micheli

C. Prevost

D. Tillet

42. Biotic agents are

A. Animate cause

B. Living organism

C. Pro and eu karoytes

D. All

43. VIRIODS are

A. Spindle tuber of potato

B. Yellow mosaic of blackgram

C. Parasitic flowering plant

D. All

44. Microscopic unicellular prokaroytes which lack chlorophyll called

A. Bateria

B. Virus

C. Fungi

D. Algea

45. RLB stands for

A. Ricket like blood

B. Red like blood

C. Rickettsia like bacteria

D. None

46. Time between infection and the first reproduction of the pathogen is called………period

A. Infection          

B. Incubation     

C. Fructification

47. Which statement is not belong to disease.

A.Disease is not a condition

B.Disease is not infectious

C.Disease and injury are not the same

D.Disease is triangle

48. Koch’s postulates are applied on

A.Pathogenicity test            



D.Disease pyramid  

49. Koch’s postulates not applied on all dseases because  

A. Microbes are obligating intracellular parasites               

B.Some diseases have variable signs and symptoms between infected plants                 

C. some diseases may caused several different diseases

D.All of them

50. Non infectious plant abnormalities due to non living causes


B. Sign                

C.  Ooze 

51. Capability of a pathogen to cause disease called 


B. Pathogenesis  

C. none of them

52. Formation of clear or amber coloured exudateswhich sets into solid mass called





53. Factors involved in phytopathology or relationship can be showed by

A.Disease triangle                        

B.Koch postulates

C.Disease pyramid                       

D.Both a and b

54. Pathogenicity test comprise of  

A.Association….inoculation…..successful isolation… isolation

B.Association….successful isolation…. Inoculation… isolation

C.Association… re isolation …..successful isolation……inoculation

55. Pandemic diseases occur

A.At very irregular intervals

B.Destructive over the entire continent

C.At particular country or district

56. Plant diseases can be classified based on the number of generation of infection

A.Mono cyclic diseases

B.Polycyclic diseases

C.Both a and b

57. Which type of symptoms expressed immediately after the successful establishment of pathogen.

A.Primary symptoms


C.Secondary symptoms

58. Chloroplast that have not been exposed to light called




59. Wheat infected by…….and normal grains arereplaced by the nematode structure (galls)


B.Anguina tritici


60 .Abnormal secretion out of watery or slimy product from the affected plant part




61. Which pattern of disease represent the dimension of time

A.Disease cone

B.Disease pyramid

C.Disease prism

62. Which agent of disease is mobile



C.Both of them

63. Mycorrhizal  exhibits the phenomenon of? 




D.All of them

64. In arid and semi arid region most common stresses are

A.Water deficit          

B.osmotic imbalance      

C.Both a and b

65. In the specific climate for the production/ propogation of AMF which types are better 



C.Native Mycorrhizae 


66. High amount of ——— also decrease the necessity for AMF and host plant symbiosis.



c)Both a and b        

D.None of them

67. AMF and glomalin related soil protein used as ——-of ——–? 

A.Bio-indicator, soil quality 

B.Bio-indicator, Plant  quality      

C.Bio-indicator, heavy metals 

68 .Slide method of inoculation of AMF use for 

A.Propagation in vitro    

B.Propagation in hydrophonic  

C.Single spore Culture     

D.Both a and c

69 .Pure culture also use as

A.Plant growth promoting inocula        

B.Isolation of AMF spores 

C.None of them  

70 .Mycorrhizae receive which thing from host plant.

A.Photosynthetic food   

B.Photosynthetic Carbon  

C.none of them

71. Due to plant and AMF association  led to 

A.Morphological changes 

B.Physiological changes

C.Cellular conservation of water

D.All of them

72. Mature cleistothesia bear characteristic appendages belongs to order:


B) Uredinales

C) Polyporales

D) Agaricales

73. Most common kind of mycorhiza in the world is:


B) Endomycorrhiza



74. Meteropathology is the study of relation between which conditions and epidemics


B) Climate

C) Environmental

D) Sorruonding

75.Fusrium reproduces asexually by means of:



C) Chlamydospore       

D) All a,b,c 

76. The epidemic with steep rise, acute peak and steep decline is:

A)Explosive epidemic

B)Tardy epidemic     

C)  Both a,b     

D) None of them

77. Conidia are slipper shaped in:

A) Aspergilus     




78. Rot of pulpy fruit are caused by species of:



C) Fusarium    

D) Cercospora

80. In perithecium sterile threads , which are hair like structures are called;


B) Pseudoparaphysis

C) Periphysis

D) Apical  paraphysis

81. Establishment of pathogen within the host following penetration is called :


B) Infection

C) Symptoms

D) Colonization

82. Mushrooms found on dead leaves are called :


B) Lignicolous 

C) Fungicolous   

D) Folicolous

83. Anthacnoses appear due to the destruction of :

A) Collenhyma

B) Cambium

C) Sclerenchyma

D)  Both a,b

84. When epidemic extends over most of the continent  and cause mass mortality, it is termed as:

A) Sporadic

B) Endemic    

C) Pandemic        

D) Cyclic

85. Basidiocarp are not formed by :

A) Agaricus

B) Rust

C) Polyporous

D) Lycoperdon

86. Sudden collapse of seedling is:

A) Damping off   

B) Withering      

C) Pallor       

D) Rotting

87. Which stage of rust considered to be a perfect stage;

A) Uredospore

B) Teliospore

C) Basidiospor

D) Pycniospore

88. Which Agaricale is highly poisonous :

A) A. bioaporous

B) A. mucaris     

C) A.compestris  

D) All of them

89. Which is not follow the character of Myxomycota?

A) All are Achlorophyllous

B) All are acellular slime molds

C)All are decaying wood and dung

D) Hypothallus is present

90. Phaneroplasmodium is characteristic of 

A) Phanerosporales     

B) Antifungal      

C) Physarales      

D) All of them

91. A secretion  of the plasmodium on the substrate at the time of sporulation.

A) +/- hypothallus    

B) +/- stalk      

C) +/- capilitum   

D) All of them

92. Most common species of chytridiomycota is

A) Rhizophydium sphaerotheca               

B) Rhizopus stolonifer 

C) Rhizophydium sphaerotheca               

D) All of them

93. Puccinia recondita cause which type of wheat rust

A) Black          

B) Brown       

C) Orange     

D) b and c  

94. 16.Radish brown to dark brown lesions on the stem or roots are common symptoms in which type of damping off disease 

A) Pythium damping off                      

B) Rhizoctonia damping off    

 C)Thielaviopsis damping off            

D) All of them

95. In powdery mildew fungi which type of fruiting body produce

A) Stroma       

B) Pseudothecium    

C) pycnidium    

D) cleistothecium

96. In zygomycota which hormone induce formation of progametangia for sexual reproduction

A) Abisic acid   

B) Proline   

C) Salicilic acid   

D) Trisporic acid

97. Clamp connection is most common feature in which class of fungi.

A) Ascomycota    

B) zygomycota     

C) Basidiomycota    

D) Chytridiales

98. Four stalked and terminal basideospores structureis called

A) Probasidium     

B) Holobasidia     

C) Phragmobasidia    

D) All of them

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