Wednesday, 4 August 2021

                                                             ASRB – NET (March, 2014-I)

No.

Questions

Answers

1

Pectic enzyme activity shown by

Caratovara group

2

Group of Carbendazim

Benzimidazole

3

Class of White rust causing fungi

Oomycetes

4

White rust causing pathogen

Albugo candida

5

Tool in genetic engineering

Agrobacterium tumefaciens

6

Species of Agrobacterium not having Ti Plasmid

Agrobcterium radiobactor

7

Erwinia have which type of flagella

Peritrichous

8

Apple/pear bilght pathogen have flagellar type

Peritrichous

9

Ralstonia solanocarum causing which disease

Wilt of solanaceous crops

10

Different organism from following:                              A. tumifaciens, R.solanacerum,

S. scabies, X. compestris

S. scabies

11

EPIVEN model is for which disease

Apple scab

12

EPIDEM model is for which disease

Early blight of Potato

13

Smallest pathogen

Viroid

14

Virion after removal of protein coat

Viroid

15

Little leaf of brinjal caused by

Phytoplasma

16

Sesamum phyllody caused by

Phytoplasma

17

Leaf curl of tomato is transmitted by

Whitefly

18

Pathogen required several years for completion of life cycle

Polytic pathogen

19

How to prepare 500 ppm concentration of oxyteracylcline for citrus

canker

500 mg per liter of water

20

Cross protection phenomenon

Concept

21

Cross protection done in which virus

CTV/PSRV

22

Phase mediated transfer of DNA method

Transduction

23

Sequence for PCR

Denaturation/ Anneling/  Extension

24

Process of DNA amplification

PCR

25

Infection of Ergot of Bajara

Localised blossom infection

26

Bengal Famine due to pathogen

Helminthosporium oryzae

27

Phanerogamic parasite have chlorophyll but no root

Cuscuta

28

Tundu disease is in association with the

Anguina tritici

29

Needham reported first nematode

Anguina tritici

30

Envelope containing Virus

Topsovirus

31

In Topsovirus medium size RNA is

Ambisense

32

Hypovirulence is due to

ds RNA

33

Most virus contain

ss RNA

34

Most of the plant pathogenic bacteria

Rod shaped

35

Oldest fungicide

Copper

36

1% Bordeaux mixture

5:5:50

37

Strobulibin fungi belong to group

Basidiomycotina

38

Apron fungicide used against

Downy mildew of Bajara

39

Dikaryotization in rust fungi in which spore

Aeciospores

40

A group of fungi which have filamentous hypha, ascogenous hypha

absent and thallus yeast like

Hemiascomycetes

41

Naked asci present in

Taphrina

42

Bacterial capsule made up of

Carbohydrates and protein

43

Disease in which more auxin is synthesized

Potato virus Y

44

Xiphenema transmit grape fan leaf virus discovered by

Hewitt

45

Silver leaf symptom due to

PAN

46

PAN causes which symptoms

Silver leaf

47

Black tip of mango due to

SO2

48

Khaira disease due to deficiency of

Zn

49

In wilt disease accumulation of ……takes place

Tyloses

50

Black heart of potato due to

Low oxygen level

51

Who did the nomenclature of P. infestans in 1861

Anton de Bary

52

Vesicle present in

Pythium

53

Edible fungus

Mushroom

54

Poisonous fungus

Amanita

55

Facultative anaerobic organism

Erwinia

56

Koch’s postulates related with which disease

Anthrax in cattle

57

Toxin that determine disease

Victorin

58

Heteroceous rust

Black stem rust wheat

59

Alternate host absent in

Yellow stem rust

60

Citrus stubborn disease caused by

Spiroplasma

61

Coiled appendages present in

Uncinula necator

62

Domestic quarantine exist for

Banana bunchy top

63

Year for DIP, Act

1914

64

Monocyclic disease

Loose smut of wheat

65

Asexual stages of fungi found in

Deuteromycotina

66

Parasexual life cycle found in Aspergillus nidulans belongs to

division

Ascomycotina

67

Antibiotic Viridin from Trichoderma viride first reported by

Weindling (1932)

68

Mycorrhiza provides which nutrient

Phosphorus

69

Red scale onion resistant to onion smudge due to

Protocatechuic acid

70

Susceptible variety of gram

JG 62

71

ELISA measure in

Nano gram

72

Plasmodiophora discovered by

Woronin

73

Beijerinck

Contagium Vivum fluidum

74

RLO culture on

Yolk culture

75

Orobanche/Striga

Complete root/Partial root

76

Vertical/horizontal term given by

Vanderplank

77

Most important PGPR

Pseudomonas putida

78

Long form of PGPR

Plant Growth Promoting

Rhizobacteria

79

Surface disinfectant

Mercury chloride (0.1 %), Sodium Hypochoride (1 %), Ethyl alcohol

80

Major soil borne pathogen

Rhizoctonia

81

Solar heat treatment for control of which disease

Loose smut of wheat

82

Transformation concept

Take DNA from outside source

83

Take all of wheat pathogen

Gaumannomyces graminis tritici

84

Transformation require how many living cells

One

85

Heat sterilization period at 1600C in hot air oven

1.1/2 to 2 hrs

87

Mucor and Rhizopus differ from one another on the basis of

Rhizoids

88

Gene for gene hypothesis given by

H.H. Flor

89

Gene for gene hypothesis given in which crop

Linseed

90

Common method for purification of bacteria

Streaking

91

Myximycetes mold

Slime mold

92

Mode of transport/entry of Xanthomonas

Hydathode

93

Rice ufra disease is caused by

Ditylinchus angustus

94

Ooze test is for

Bacteria

95

Sterile structure in ascocarp

Paraphyses/Periphyses

96

Pierce disease caused by

Xylella fastidiosa

97

PDA which type of media

Semi-synthetic

98

IAA precursor

Tryptophan

99

Stalk rot of maize pathogen

Erwinia carotovora f.sp. zeae

100

Aflatoxin dangerous form

B1

101

Bacteria infect bacteria

B’delvibrio

102

Genera that include pathogenic bacteria

Ralstonia

103

Spores formed by budding

Balistospores

104

Vector for rice tungro disease

Nephotetix virescens (green leaf hopper)

105

Blossom end rot deficiency due to

Ca deficiency

106

Race of wheat stem rust pathogen spread world wide

Ug99

107

Sanitation removes

Primary inoculum

108

Polyethylene size used for solarization

100 micron

109

Cyst nematode found in

Sugarbeet

            *answers are based on the options given in the exam

            *the above questions are purely based on memory 

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