ASRB-NET (September, 2014-II)
No. |
Questions |
Answers |
1 |
The condition in which two
different nuclei present in single cell |
Heterkaryosis |
2 |
Pathogen that do not induce
abnormal growth in host |
Clavibacter |
3 |
Ganga river water is clean due to
presence of |
Bacteriophage |
4 |
Cyanophage contain |
Ds linear DNA |
5 |
ф174 contain |
ssDNA |
6 |
Symptom of tungro virus |
Spherical
ssRNA along with bacillus dsDNA
intensify the symptoms |
7 |
Tungro virus is transmitted by
the combination of which viruses |
Waika + Badna
virus |
8 |
Hypovirulance is the example of
which type of control |
Biological
control |
9 |
Indian Phytopathological society
is established by |
B.B. Mundkur |
10 |
B.B.Mundkur wrote which book |
Fungi and
Plant Diseases |
11 |
Who worked on wheat rust in India |
K.C.Mehta |
12 |
In case of wheat rust telial
stage is develop on which type of host |
Primary host |
13 |
Vector for rice tungro virus |
Nephottetix virescens |
14 |
Wheat stem rust pathogen strain |
Ug 99 |
15 |
Choose wrong pair (Virus generic
name-vernacular name) |
Tobacco ring
spot-Tobra Virus |
16 |
Black heart of potato due to
deficiency of |
Low oxygen
level |
17 |
Khaira is deficiency of |
Zn |
18 |
Which of the following is the
example of hormonal imbalance |
Bakane disease
of rice* |
19 |
Vector for potato leaf roll virus
(Polero virus) |
Aphid |
20 |
Vector for Yellow vein mosaic of
bhendi |
Whitefly |
21 |
Sugarcane ratton stunting disease
caused by |
Leifsonia xyli
subsp. xyli |
22 |
Book: Principles of Plant
Pathology by E.C.Stakman and Harrer published in which year |
1957 |
23 |
Bordeaux mixture is for management
of which disease |
Downy mildew
of grape |
24 |
Bordeaux mixture is used against
which pathogen |
Plasmopara viticola |
25 |
Chestnut compound concentration |
Copper sulphate
+ Ammonium carbonate (2:11 parts) |
26 |
Group of Metalyxl |
Aclyalanine |
27 |
Mode of action of Metalyxl |
Interfering
with activity of RNA polymerase |
28 |
Metalyxl is used against which
diseases |
Downy mildew
(Oomycetes) |
29 |
Nova Planterum Genera written by |
P.A.Micheli |
30 |
Fungicides/Biopesticides
registered under which act |
Insecticide
Act 1968 |
31 |
Nuclear Polyhydral Virus is found
in which of the following |
Insect |
32 |
Which of the fungicide is banned
for use |
PCNB |
33 |
Under storage condition which of
the following chemical is used |
Formaldehyde |
34 |
EPIDEM forecasting model is for
which disease |
Alternaria blight |
35 |
Virus/Viroid is transmitted by
leaf hopper/plant hopper |
Rice tungro -
Rice ragged virus |
36 |
Which of the following higher
parasitic plant responsible for virus transmission |
Dodder/ Cuscuta |
37 |
Striga is an example of |
Partial/hemi
root parasite |
38 |
Broomrape of tobacco is caused by
which species |
Orobanche sp. |
39 |
Synemma is the |
Attachment of
conidiophores |
40 |
Which of the following pathogen
has disjuctor cell |
Albugo candida |
41 |
Haustoria produced in |
Albugo candida |
42 |
Perfect stage of Colletotrichum |
Glomerella |
43 |
Pythim is |
Facultative
parasite |
44 |
Which of the following toxin not
produced by Fusarium sp |
Aflatoxin |
45 |
Which of the pathogen have macro
and micro conidia |
Fusarium sp. |
46 |
Which is odd one (Out of mycotoxins) |
Cersosporin |
47 |
Tentoxin is produced by |
Alternaria alternate |
48 |
Tabtoxin composed of |
Tabtoxinin +
Threonin |
49 |
Most commonly used biocontrol
agent |
Pseudomonas fluorescens |
50 |
Example of black mould of fungus |
Capnodium |
51 |
Which of the following fungi
commonly not associated with diseases of hard wood |
Verticillium sp.* |
52 |
Example of non-edible fungi |
Claviceps purpurea |
53 |
A chemical used at the time of
human pregnancy is obtained from which of the organism |
Claviceps purpurea |
54 |
Sclerotial producing fungi |
Rhizoctonia/Claviceps/ Sclerotinia |
55 |
A term used for multinucleate mass of protoplasm of
the organism |
Plasmodium |
56 |
Streptomyces scabies can be controlled by |
Lowering pH
(5.2) |
57 |
Group of sunflower necrosis virus |
Illarvirus |
58 |
In case of dsRNA viruses generally 10-12 RNA stands
are present, Thus 12 components of RNA present in |
Wound tumor
virus |
59 |
Albugo candida
causing disease is known as pseudorust. what is the reason? |
As it is not a
member of basidiomycetous
group* |
60 |
A type of symptom in which plant part died/showed
necrosis from tip downward |
Dieback |
61 |
A condition development due to low light intensity |
Etiolation |
62 |
Order of downy mildew fungi |
Pernosporales |
63 |
Which of the following irrigation method reduces
spread of the disease under field conditions |
Drip
irrigation* |
64 |
A vector for banana bunchy top |
Pentalonia nigronervosa |
65 |
Coffee rust disease introduced in India from which
country |
Sri Lanka
(Cylon) |
66 |
Wart of potato introduced to India from which
country |
Holland |
67 |
Which of the following hormone is responsible for
bakane disease of rice |
Giberellic
acid |
68 |
Biocontrol agent of Agrobacterium tumefaciens |
Agrobacterium radiobactor |
69 |
Ti plasmid of Agrobacterium tumefaciens has genes
for |
Auxins and
Cytokinin |
70 |
Which of the following chemicals effectively control
fungi |
Protectant |
71 |
PCR can amplify |
DNA |
72 |
In stain colour is due to |
Chromophore |
73 |
Sterol is required for the growth of |
Mycoplasma |
74 |
Phytoplasma are found in phloem cells due to
presence of |
Sterol |
75 |
RLO discovered by |
I.M. Windsor
and L.M. Black |
76 |
Who saw the cork cell under compound microscope |
Robert Hooke |
77 |
Who saw the bacteria/protozoa under simple
microscope |
Anton Von
Leeuwenhoeck |
78 |
Founder of Mycology |
P.A. Micheli |
79 |
Who discovered first bacterial plant disease in year
1878 |
T.J.Burill |
80 |
Who discovered heterocism in rust fungi |
Anton de Bary |
81 |
Agar agar is obtained from |
Gelidium |
82 |
Blotter paper method is discovered by |
L.C. Doyer |
83 |
Fungicide Resistance Action Committee is established
in year |
1981 |
84 |
Example of cross protection |
Citrus
tristiza virus |
85 |
A method for obtaining virus free culture plants |
Shoot tip
method |
87 |
Large quantity of virus free potato seeds are
obtained with following method |
Heat therapy |
88 |
A country which developed forecasting for potato
diseases |
Holland
(Netherland) |
89 |
Dahlia mosaic- Cauliflower mosaic virus contain |
dsDNA |
90 |
Virus crystallization is done by |
W.M. Stanley
(1935) |
91 |
A condition for contact of two bacterial cells |
Conjugation |
92 |
After conjugation of two bacterial cells a product
is called as |
Recombinant |
93 |
Bacteria generally reproduce by |
Binary fission |
94 |
Bacterial cell wall contain |
Murein |
95 |
Tundu disease of wheat is the association of |
Bacteria +
Nematode |
96 |
A fungi having adhesion traps for control of
nematode |
Arthobotrys |
97 |
A substance used while preparing fungicide for
adhesion purpose |
Stickers |
98 |
For control of blast of rice chemical used is |
Tricyclozole
0.1 % (Beam) |
99 |
Vegetative stage of bacterial leaf blight called |
Kreseck |
100 |
Drechslera
oryzae produced which toxin |
Coclibolin |
101 |
Cocliobolus heterostophus caused which of the
following disease |
Maize leaf
spot |
102 |
Resolution of light microscope |
0.3 micrometer |
103 |
A instrument for counting bacterial population on
the basis of turbidity |
Spectrophotometer |
104 |
Which of the following is viroid disease |
Citrus
exocortis |
105 |
Viroid can be detected by |
PAGE |
106 |
Temperature for soil solarization |
52oC |
107 |
A dense structure found near hypha of ascomycetes |
Woronin body |
108 |
Panama wilt disease is caused by in association with
nematode |
Fusarium oxysporum f.sp. cubense |
109 |
Bacterial wilt can be identified from
fungal/physiological wilt by |
Ooze test |
110 |
Tyloses are the which type of defense response |
Histological |
111 |
Ergot of bajara is having infection site |
Blossom |
112 |
Pathogen having open ascus |
Taphrina sp. |
113 |
Crop to which Protomyces
macrospores infect |
Coriander |
114 |
Trichoderma has
following mode of action |
Antibiosis/ Mycoparasitism |
115 |
Sigmoid curve observed in case of |
Polycyclic
disease |
116 |
iRc>1 is for |
Epidemic |
117 |
Following disease is increased with compound
interest of money |
Wheat stem
rust |
118 |
Boom and burst cycle observed in which of the
following resistance |
Vertical resistance |
119 |
Which disease increase with application of NH4 and
No2 form |
Rice blast
disease |
120 |
Example of gram positive bacteria |
Corynebactor |
121 |
Gram positive bacteria sensitive to |
Penicillin |
122 |
Enzyme secreted by Ervinia caratovora |
Pectinolytic |
123 |
Cyanobacteria does not contain which pigment |
Chlorophyll A |
124 |
Which of the following process is not involved in
virus replication |
Binding |
125 |
Period between inoculation and symptom expression |
Incubation
period |
126 |
Period required between taking virus into vector and
inoculation into the host |
Latent period |
127 |
Solar heat treatment given by |
Luthra and
Sattar (1934) |
128 |
Chemicals that suppress fungi temporarily without
killing |
Fungistatic |
129 |
Overgrowth observed due to |
Hypertrophy/ Hyperplasia |
130 |
Carborandum powder chemically known as |
Silicon
carbide |
131 |
Grapefan leaf disease transmitted by |
Xiphenema sp. |
132 |
Pyriculara
toxin detoxify by |
Chromogenic
acid |
133 |
Spread of disease among plant population |
Epidemic |
134 |
In case of pandemic disease |
Spread of
disease across continent |
135 |
Clonal citrus plants produced virus free by |
Meristem
culture |
136 |
In plasmogamy nuclear condition observed is |
n + n |
*answers are based on the options
given in the exam
*the above questions are purely
based on memory