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Subject- Breeding of Crops
1
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more useful to humans
b
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less likely to survive in nature
d
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The concept of centers of origin of crop plant was proposed by
a
...
I
...
C
...
J
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Haralan
d
...
B
...
Sonora 64 and lermaRojo wheat varieties are example of
a
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secondary introduction
c
...
non of these
4
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megacenters of origin
b
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centers of diversity
d
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TN 1, IR 8, IR 28, IR 36 rice variety is a good example of
a
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secondary introduction
c
...
non of these

6
...
6
b
...
12
d
...
The cultivated banana is
a
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allotetraploid
c
...
allotriploid
8
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agriculture crop
b
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horticulture crop
d
...
The introduction of quinine and rubber trees in India was arrange by
a
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forest research institute
c
...
Kew botanic gardens
10
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primary introduction
b
...
secondary introduction
d
...
Germplasm is also called
a
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genetic resource
c
...
world collection
12
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Rajahmundry
b
...
dharwar
d
...
Ricegermplasm is maintained at
a
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Hyderabad
c
...
Srinagar
14
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central American center of origin
b
...
central asia Centre of origin
d
...
Maize , pumpkin , rajma and sweet potato originated in
a
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central American centre of origin
c
...
Mediterranean centre of origin
16
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centre of origin
b
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Hindustan centre of origin
d
...
In India cotton germplasm collection is maintained at
a
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Nagpur
c
...
new delhi
18
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fungi and bacteria
b
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bacteria and nematodes
d
...
The concept of gene – for – gene relationship between host and pathogen was proposed by
a
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flor
c
...
marshall
20
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early varieties
b
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control of disease carriers and pathogen
d
...
The terms vertical and horizontal resistance were introduced by
a
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van der plank
d
...
The different mechanisms of disease resistance are
a
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hypersensitive and nutritional
c
...
all of the above
23
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flor
b
...
Borlaug
d
...
The concept of boom and bust cycle was proposed by
a
...
priestley
c
...
frey
25
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leaf rust of wheat
b
...
linseed rust

d
...
Helminthosporiumsacchari is the causal organism of
a
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leaf blight of sugarcane
c
...
leaf blight of wheat
27
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bulter
b
...
van der plank
d
...
The terms strong and weak oligogenes were introduced by
a
...
Flor
c
...
priestley
29
...
Lamark

B
...
Charles Darwin

D
...
"Experiments in Plant Hybridization" a paper of G
...
1905

B
...
1866

D
...
"If a gene is represented in an infinitely large random-mating population by adaptively neutral
alleles, A and a, in the ration of qA: (1-q)2 aa = 1" is known as:
A
...
Weibe-Thomas law

C
...
Hard-Weinberg law

32
...
Number of homozygote produces by selfing a F1
B
...
Number of types of heterozygote produced by selling F1
D
...
A character dermined by many genes and does not show discrete variation is known as:

A
...
Oligogenic character

C
...
Multiple-allelic character

34
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Homogamy

B
...
Polygamy

D
...
A criss-cross inheritance is shown by:
A
...
Polygamy

C
...
Sex-quantitative

36
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A sex hybrid

B
...
A plant produced by cell culture

D
...
A homozygous line developed by self-fertilization in a cross-pollinated crop is termed as:
A
...
Inbred

C
...
Mutant

38
...
Heterozygous

B
...
Both of the above

D
...
A large unit of natural vegetation in an area under identical condition (climatic) is called:
A
...
Association

C
...
Climax

40
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Male fertile and can restore fertility

B
...
Male sterile but cannot restore fertility

D
...
A male gametophyte in angiosperms contains:
A
...
Two male gamete only

C
...
One male gamete and one tube nucleus

42
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Self-pollinated population
C
...
Inbred population
`

D
...
A method of breeding most commonly used when the desired variation is required to be induced
in a vegetatively propagated crop is:
A
...
Pedigree method of breeding

C
...
Backcross method of breeding

44
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Dioecious

B
...
Polygamous

D
...
A plant breeder is interested to control pollination to:
A
...
Control pollination

C
...
Both of these

46
...
20

B
...
40

D
...
A plant with genotype Gg Ww will produce gametes of which of the following types?
A
...
GG,WW,gg,ww

C
...
All of them

48
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Nucleus

B
...
Both (a) & (b)

D
...
Wind pollination is also known as:
A
...
Entomophyly

C
...
Hydrophyly

50
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Related with the clay

C
...
Changing of climatical condition

51
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Mutation

B
...
Heredity

D
...
An individual having different alleles for any gene pair and producting two kinds of gametes is known
as:
A
...
Homozygous

C
...
Heterogenous

53
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Often-cross

B
...
Cross

D
...
Biffin in 1905 announced, that resistance to yellow rust of wheat is governed by ______ gene in crosses:
A
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Single recessive

C
...
Double recessive

55
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Haploid

B
...
Tetraploid

D
...
Bulk population breeding is suitable for:
A
...
Vegetable

C
...
Flower crops

57
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Law of limiting factors

B
...
Binomial system of nomenclature

D
...
Cauliflower, cabbage, broccoli, kohlrabi and brussels sprouts have been derived from wild
cabbage that, still grows in coastal regions of:
A
...
Mesopotamia

C
...
Africa

D
...
Chromosome numbers in somatic cells of a maize plant are:
A
...
26

C
...
20

60
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Miexico

B
...
Spain

D
...
Cliestogamy encourages:
A
...
Cross pollination

C
...
Inbreeding depression

62
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Homozygous

B
...
Heterozygous

D
...
Composites are developed by using:
A
...
Hybrid directly from intervarietal crosses
C
...
The hybrid of an inbred with an open-pollinated variety
64
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Is a self-pollinated crop

B
...
Is an often-cross pollinated crop

D
...
Cross between cytoplasmic male sterile x cytoplasmic male fertile:
A
...
Produce fertile F1

C
...
None of the above

66
...
Test cross

B
...
Back cross

D
...
Development of a fruit without fertilization is known as:
A
...
Polyembrohy

C
...
Apomixes

68
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Physical

B
...
Mechanical

D
...
Disease rsistance in barley is:
A
...
Qualitative characteristics

C
...
None of the above

70
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Removal of male parts from a bisexual flower

B
...
Removal of male and female parts

D
...
Epistasis should be crefully distinguished from dominance, which refers to non-additivity of alleles at:
A
...
Different loci of a homologous

C
...
Different locus of non-homologous

72
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Qualitative chracter

B
...
Both of them

D
...
For Hardy - Weinberg law to operate:
A
...
There should be open pollination

C
...
All of the above

74
...
One genotype and two environments

B
...
Three genotypes and one environment

D
...
Germplasm means:
A
...
A collection of genetic material

C
...
None of the above

76
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Interaction product of genotype with environment
B
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Degree of resemblance between the original and the selected plants
D
...
Hybrid seeds can be produced through open pollination with the use of:
A
...
Clones

C
...
Male sterile lines

78
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Cotton

B
...
Millets

D
...
If a character is cytoplasmically controlled then:
A
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The progeny resembles male

C
...
15:1 segregation in F1

80
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Tomato

B
...
Broccoli

D
...
In ______, the first studies on artificial hybridization for which yields were reported were those
of Beal during the period between 1877 and 1882:
A
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Pearlmillet

C
...
Carrot

82
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Cytoplasmic male sterility is found

B
...
Cytoplasmic genetic male sterility is found

D
...
In cotton, the popularly grown commercial hybrid varalaxmi's is the product of:
A
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Intraspecific hybridization in Gossypium barbadense
C
...
Interspecific hybridizaton between Gossypium arboreum and Gossypium herbaceum
84
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Male genetic sterility

B
...
Cytoplasmic genetic male sterility is found

D
...
In mass selection, plants are selected on the basis of:
A
...
Genotypes

C
...
None of the above

86
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F5

B
...
F2

D
...
In self-incompatibility system:
A
...
Self pollination takes place

C
...
All are correct

88
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What would be its chromosome number in the
endosperm?
A
...
20

C
...
40

89
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Two

B
...
Four

D
...
In wheat, cross-pollination is:
A
...
More than 5%

C
...
50%

91
...
Wheat

B
...
Maize

D
...
International Rice Research Institute (IRRI) is situated in:
A
...
Japan

C
...
Burma

93
...


A
...
15,000

C
...
35,000

94
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Ethyl methane sulphonate

B
...
Colchicines

D
...
Johansen proposed:
A
...
Pure line theory

C
...
Hybridization

96
...
Pepo

B
...
Berry

D
...
Mating between two individuals related by descent is:
A
...
Inbreeding

C
...
Maintenance of population

98
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Variety

B
...
Synthetic

D
...
Which of the following type(s) of male sterility is/are used in commercial seed production of
double cross hybrid maize?
A
...
Genetic alone

C
...
Cytoplasmic and genetic with

100
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Onion

B
...
Maize

D
...
Method of breeding can be used for studying the ancestral characteristic:
A
...
Pedigree method

C
...
None of these

102
...
Several morphologically different plants having identical disease resistance genes
B
...
Several similar pure lines having different genes for disease resistance

D
...
Mutation is known to be due to change in genes:
A
...
Degeneration

C
...
All the above

104
...
Sweden

B
...
Germany

D
...
Nucleus seed is:
A
...
80% pure

C
...
40% pure

106
...
Geitonogamy

B
...
Xenogamy

D
...
Polygenes affecting the same trait, with each enhancing the phenotype are termed as:
A
...
Alcaptonuria

C
...
Additive factors

108
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To accumulate deleterious alleles

B
...
To accumulate favourable alleles

D
...
Pototo and Jerusalem artichoke are example of:
A
...
Tuber

C
...
Corn

110
...
Breds true

B
...
Resembles paternal plant

D
...
Pseudo-fertility may also occur late in the season as in:
A
...
Tobacco

C
...
Tea

112
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The progeny of selfed heterozygous plant
C
...
The progeny of selfed homozygous plant
D
...
Pureline selection is:
A
...
Used to improve cross-pollinated crops

C
...
Used in vegetatively propagated crops

114
...
The name of a plant

B
...
The process of observation of alien material

D
...
Random assortment of genes will occur if the gene are located on:
A
...
Different chromosomes

C
...
Autosome

116
...
Cross pollinated crops

B
...
Vegetatively propagated crops

D
...
Restorer gene is needed:
A
...
To bring fertility in male sterile

C
...
To enhance the yield

118
...
Tungro

B
...
Blast

D
...
Selfing of a plant increases:
A
...
Homozygosity

C
...
Heterogenecity

120
...
Polymorphism

B
...
Phenocopy

D
...
Specific combining ability of the parents should be high in order to develop:
A
...
Composites

C
...
Synthetics

122
...
Intervarietal hybridization

B
...
Intraspecific hybridization

D
...
Sterility incompatibility of distant crosses can e overcome to produce hybrids by:

A
...
Anther culture

C
...
Embryo culture

124
...
34

B
...
14

D
...
The best method to carry forward the maximum number of genotypes/genes to the advanced
generations against the force of natural selection is:
A
...
Bulk method

C
...
Back cross method

126
...
Tetraploid

B
...
Diploid

D
...
The condition in which the anthers and stigmas of a bisexual flower mature at the same time is
known as:
A
...
Heterogamy

C
...
Homogamy

128
...
Herkogamy

B
...
Dicliny

D
...
The embroid (formed by vegetative cell) develops into a plant, which, in fact, grows out of anther as in:
A
...
Wheat

C
...
Sorghum

130
...
Pure lines

B
...
Parents

D
...
The fruits of cucurbitaceae is:
A
...
Pome

C
...
Drupe

132
...
Catkin

B
...
Spike

D
...
The initial pool of a composite population is composed of:

A
...
Isoline

C
...
Single plants derived from crosses and/or germplasm

134
...
A line

B
...
C line

D
...
The mechanism of male sterility in self-pollinated crops can be successfully utilised to obtain:
A
...
Mutated seed without radiation

C
...
Sterile seed

136
...
Recurrent selection

B
...
Pure line selection

D
...
The number of chromosome in common wheat is:
A
...
38

C
...
42

138
...
Berry

B
...
Siliqua

D
...
The physical basis of heredity is termed as:
A
...
Gene frequency

C
...
None of the above

140
...
Shull

B
...
Jones

D
...
The proportion of one allele as represented in a breeding population is known as:
A
...
Gene pool

C
...
None of the above

142
...
Mass selection

B
...
Pure line method

D
...
The scientific name of bread wheat is:
A
...
durum

B
...
dicoccum

C
...
aestivum

D
...
monecoccum

144
...
Glycine max

B
...
Zea mays

D
...
The term used in sugarcane breeding to denote the crossing of Sacharum officinarum with
related species followed by one or more back crosses is called:
A
...
Crossing over

C
...
Nobilisation

146
...
Genetic male sterility

B
...
Genetic cytoplasmic male sterility

D
...
Transfer of resistance gene to high yielding self-pollinated varieties is achieved by:
A
...
Recurrent backcrossing and

C
...
Hybridisation and mass selection

148
...
Cross pollinated

B
...
Self pollinated

D
...
When an F1 is crossed with the recessive homozygote parent the cross is known as:
A
...
Top cross

C
...
Single cross

150
...

b
...

d
...
In 1911 the concept of physiological races was introduced by:
a
...

c
...


Barus
Browing
Flor
Knight

152
...

b
...

d
...
Wheat multiline variety MLKS-11 has how many component lines:
a
...

c
...


8
6
10
12

154
...

b
...

d
...
Diseases reduce biomass production perunit area by:
a
...

c
...


Killing of plants
Damage leaf tissues
Demage reproductive organs
All of above

156
...

b
...

d
...
In case of fungi new pathotypes arise by :
a
...

c
...


1,2
2,4
1,3
1,2,3,4

158
...

b
...

d
...
In case of insects new biotypes was produced by
a
...

c
...


1,2
1,4
1,2,4
1,2,3

160
...

b
...

d
...
Abscisic acid promotes

a
...
leaf senescence
c
...
all
162
...

b
...

d
...
Canopy temperature is readily measured with;
a
...
Tentiometer
c
...
Porometer
164
...
20%
b
...
25%
d
...
The potentially arable geographical area in india is
a
...
3%
b
...
6%
c
...
6%
d
...
6%
166
...
15
...
14
...
8
...
10
...
Which of the following is the most sensitive of water stress
a
...
photosynthate translocation

d
...
The area of salt affected soils in india is about
a
...

b
...

c
...

d
...

169
...
Fe
b
...
Mg
d
...
Hardening of winter cereals is achieved by an exposure for how many weeks at 1 to 2c
...

b
...

d
...
The multilocation trials were initiated in the year of
a
...
1957
c
...
1966
172
...
Research stations
b
...

c
...
All
173
...
Cotton
b
...
Tomato
d
...
Which is the hotspot for yellow rust of wheat
a
...
northern plains zone
c
...
all zones
175
...

b
...

d
...
The term ideotype was proposed by
a
...

c
...


Rasmuson
Donald
Jenning
allard

177
...

b
...

d
...
In 1975 maize ideotype was proposed by
a
...

c
...


East and shull
Mock and pearce
Smith and hayes
Halluar and marinda

179
...

b
...

d
...
Few grains in cereals is the pleiotropic expression of
a
...

c
...


Small leaves
Large grains
Small flag leaf
Many tillers

181
...

b
...

d
...
In a dihybrid cross the smallest perfect population in f2 will be
a
...

c
...


8
16
9

183
...

b
...

d
...
The three parameter model was proposed in 1958 by
a
...

c
...


Haymen
Jinks and jones
Mather
Hyman and jinks

185
...

b
...

d
...
in which model the residual sums of squared as estimated
a
...

c
...


4
2
2&3
3

187
...

b
...

d
...
In monohybrid cross phenotypic ratio is
a
...

c
...


1:1
1:1:1:1
2:1
3:1

189
...

b
...

d
...
albumin is soluble in
a
...


Water
Salt

c
...


Alcohol
Alkaline

191
...

b
...

d
...
Atlas 66 is the protein variety of
a
...

c
...


Barley
Wheat
Oat
Rye

193
...

b
...

d
...
One gram of N is present in how many grams of protein
a
...

c
...


6
...
25
8
...
25

195
...

b
...

d
...
5–2
...
4-3
...
5-6
...
The Indian seed act was enacted in
a
...

c
...


1963
1966
1969
1956

197
...

b
...

d
...
% Of germination of hybrid maize
a
...

c
...


80

199
...

b
...

d

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