UPSC sample papers

Plant Breeding Objective Questions

plant breeding quiz

Plant Breeding multiple choice questions

Question 1
Which is the oldest breeding method?
A
Introduction
B
Mutation breeding
C
Hybridization
D
Selection
Question 2
Plant breeding is

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A
none of these
B
both of these
C
An art
D
A science
Question 3
Which of the following is not used for crop improvement?
A
Introduction
B
Mutations
C
Hybridization
D
Inbreeding
Question 4
Process of hybridization is difficult because of
A
Susceptibility to mutations
B
Incompatibility and sterility
C
Selection of suitable parents and hybrids
D
All the above
Question 5
The centre of origin of almond and apple is

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A
Asia Minor and Afghanistan
B
Peruvian Andes
C
Mexico
D
Brazil
Question 6
The latest trend in plant disease control is

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A
Biological control
B
Use of disease resistant varieties
C
Use of fertilizers
D
Chemical control
Question 7
Mutations are caused due to

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A
Radiation mutagens
B
Radioactive mutagens
C
Chemical mutagens
D
Change in base sequence
Question 8
The process of removing stamens from the flower bud during hybridization is called
A
Caping
B
Selfing
C
Emasculation
D
Crossing
Question 9
Emasculation is a part of
A
Hybridization
B
Clonal selection
C
Mass selection
D
Pure line selection
Question 10
The origin of sunflower is believed to be in
A
Brazil
B
India
C
Mexico
D
USA
Question 11
Aims of plant breeding are to produce

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A
All of these
B
Disease-free varieties
C
High yielding varieties
D
Early maturing varieties
Question 12
What is a clone?
A
A homozygote produced by sexual means
B
A heterozygote produced by sexual means
C
A homozygote produced by asexual means
D
A heterozygote produced by asexual means
Question 13
Dwarf wheats were developed by
A
None of these
B
Borlaug
C
Vavilov
D
Swaminathan
Question 14
The product of hybridization is known as
A
Homozygous
B
Heterozygous
C
Clone
D
Hybrid
Question 15
Crosses between, the plants of the same variety are called
A
Interspecific
B
Intravarietal
C
Intergeneric
D
Intervarietal
Question 16
Technique employed in plant hybridization

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A
All the these
B
Emasculation
C
Bagging
D
Crossing
Question 17
Heterosis means
A
Hybrids are neither weak nor vigorous
B
Hybrids are weak
C
Hybrid vigour
D
Hybrids are weak as well as vigorous
Question 18
Plants can be disease resistant by

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A
Breeding with their wild relatives
B
Colchicine treatment
C
Heat treatment
D
Hormone treatment
Question 19
A plant breeder wants to develop a disease resistant variety, what he should do first
A
Production of crop
B
Mutation
C
Hybridization
D
Selection
Question 20
Crop cultivation was first started in
A
Northern plains of India
B
Nile river valley
C
Chinese river valley
D
All of these
Question 21
Which of the following is most effective chemical mutagen?
A
Methane
B
Guanine
C
Caffeine
D
Carbon tetrasulphide
Question 22
What are micro–mutations?
A
Reduction of chromosomes
B
Union of chromosomes
C
Changes in genes
D
Polyploidy
Question 23
The main aim of plant breeding is
A
To produce improved varieties
B
To make soil fertile
C
To become more progressive
D
To control pollution
Question 24
Removal of anthers from flower buds is called
A
Emasculation
B
Hybridization
C
Bagging
D
Heterosis
Question 25
Who used X-rays for the production of mutations?
A
Leeuwenhoek
B
Muller
C
Recawsky
D
Hooker
Question 26
Potato and tomato are native of
A
North America
B
Canada
C
South America
D
China
Question 27
Modern plant breeding started in
A
1930
B
1850
C
1880
D
1900
Question 28
Plant breeding is a technique of improving
A
Fruit varieties
B
Fodder crops
C
All of these
D
Agricultural crops
Question 29
Maize evolved in
A
Australia
B
USA
C
Mexico and Central America
D
Brazil
There are 29 questions to complete.
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