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question_answer1)
Plant breeding is a technique of improving
A)
Agricultural crops done
clear
B)
Fodder crops done
clear
C)
Fruit varieties done
clear
D)
All the above done
clear
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question_answer2)
Apart from high yield, other main objective of plant breeding is
A)
Improvement of quality done
clear
B)
Development of resistance done
clear
C)
Establishment of change in duration done
clear
D)
All the above done
clear
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question_answer3)
Plant breeding is
A)
An art done
clear
B)
A science done
clear
C)
Both a and b done
clear
D)
None of the above done
clear
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question_answer4)
Which part of plant breeding is an art
A)
Technique in hybridization done
clear
B)
Clonal selection done
clear
C)
Pureline selection done
clear
D)
Acclimatization done
clear
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question_answer5)
Modern plant breeding started in
A)
1850 done
clear
B)
1880 done
clear
C)
1900 done
clear
D)
1930 done
clear
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question_answer6)
Plant breeding has close relationship with
A)
Genetics done
clear
B)
Cytology done
clear
C)
Biometry done
clear
D)
Both a and b done
clear
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question_answer7)
In India, earliest work in the field of plant breeding was initiated by
A)
Rao done
clear
B)
Barber done
clear
C)
Borlouge done
clear
D)
Vavilov done
clear
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question_answer8)
Which one is an improved variety of wheat
A)
A. 77 done
clear
B)
Sonalika done
clear
C)
Chandramukhi done
clear
D)
Kuber done
clear
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question_answer9)
Which one of the following is an improved variety of maize
A)
N.P. 710 done
clear
B)
Co. 4 done
clear
C)
Jawahar done
clear
D)
S. 405 done
clear
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question_answer10)
Sonara-64 and Lerma rojo are varieties of
A)
Wheat done
clear
B)
Rice done
clear
C)
Pea done
clear
D)
Maize done
clear
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question_answer11)
First successful pollen culture was done by
A)
Guha done
clear
B)
Swaminathan done
clear
C)
B. P. Pal done
clear
D)
H.Y. Mohav Ram done
clear
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question_answer12)
Pioneer worker in plants tissue culture is
A)
Guha and Maheshwari done
clear
B)
Steward done
clear
C)
Haberlandt done
clear
D)
Swaminathan done
clear
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question_answer13)
In bread wheat chromosome number is
A)
42 (6 × 7) done
clear
B)
14(2 × 7) done
clear
C)
24 (4 × 6)> done
clear
D)
21 (7 × 3)> done
clear
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question_answer14)
IR-36 was developed through breeding
A)
Six rice varieties and Oryza nivara done
clear
B)
13 rice varieties and Oryza nivara done
clear
C)
Oryza indica and Oryza nivara done
clear
D)
Oryza indica and Oryza sativa done
clear
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question_answer15)
The basis of green revolution is
A)
Extensive cultivation done
clear
B)
Plant breeding done
clear
C)
Sowing at right time done
clear
D)
Cultivation in black oil done
clear
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question_answer16)
Plants can be disease resistant by [CPMT 1979; AFMC 1993]
A)
Breeding with their wild relatives done
clear
B)
Colchicine treatment done
clear
C)
Hormone treatment done
clear
D)
Heat treatment done
clear
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question_answer17)
The offspring from a cross between two individuals differing in at least one set of characters is called [BHU 1981]
A)
Polyploid done
clear
B)
Hybrid done
clear
C)
Mutant done
clear
D)
Variant done
clear
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question_answer18)
The best way to increase the yield of wheat in India is [CPMT 1984]
A)
To sow seeds of improved varieties done
clear
B)
To use tractors to till the soil done
clear
C)
To reduce the quantity of ration consumers done
clear
D)
To remove weeds from wheat fields done
clear
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question_answer19)
Crop cultivation was first started in [EAMCET 1987]
A)
Nile river valley done
clear
B)
Chinese river valley done
clear
C)
Northern plains of India done
clear
D)
All of the above done
clear
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question_answer20)
Dwarf wheats were developed by [RPMT 1987]
A)
Vavilov done
clear
B)
Borlaug done
clear
C)
Swaminathan done
clear
D)
None of these done
clear
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question_answer21)
Majority of the high yielding varieties of ?Indian rice' have been developed by cross between [Bihar MDAT 1989]
A)
O.sativajaponicatimes O.sativaindica done
clear
B)
O.sativa indica times O.nivara done
clear
C)
O.nivaratimes O.sativajaponica done
clear
D)
O.nivaratimes O.rufipogon done
clear
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question_answer22)
The product of hybridization is known as [MP PMT 1993]
A)
Clone done
clear
B)
Homozygous done
clear
C)
Hybrid done
clear
D)
Heterozygous done
clear
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question_answer23)
Which of the following is not used for crop improvement [CMC Vellore 1994]
A)
Inbreeding done
clear
B)
Introduction done
clear
C)
Hybridization done
clear
D)
Mutations done
clear
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question_answer24)
The indica varieties of rice is crossed with japonic varieties as these are [MP PMT 1994]
A)
High yielding done
clear
B)
Resistant to diseases done
clear
C)
Cheaper done
clear
D)
Short life-cycled annual done
clear
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question_answer25)
A man made allopolyploid cereal crop is [EAMCET 1995; Pb. PMT 2000, 04; BHU 2000; AIIMS 2004]
A)
Hordeum vulgare done
clear
B)
Raphano brassica done
clear
C)
Triticale done
clear
D)
Zea mays done
clear
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question_answer26)
Aims of plant breeding are to produce [MP PMT 1996, 2001, 03]
A)
Disease-free varieties done
clear
B)
High yielding varieties done
clear
C)
Early maturing varieties done
clear
D)
All of the above done
clear
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question_answer27)
Crosses between, the plants of the same variety are called [MP PMT 1997]
A)
Interspecific done
clear
B)
Intervarietal done
clear
C)
Intravarietal done
clear
D)
Intergeneric done
clear
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question_answer28)
The main aim of plant breeding is [MP PMT 1998]
A)
To produce improved varieties done
clear
B)
To make soil fertile done
clear
C)
To control pollution done
clear
D)
To become more progressive done
clear
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question_answer29)
Which of the following effect is produced by colchicine [MP PMT 1988]
A)
Duplication of DNA done
clear
B)
Duplication of chromosomes done
clear
C)
Formation of spindle fibres done
clear
D)
Hinderance in the formation of middle wall done
clear
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question_answer30)
Which is the oldest breeding method [MP PMT 1997]
A)
Hybridization done
clear
B)
Selection done
clear
C)
Mutation breeding done
clear
D)
Introduction done
clear
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question_answer31)
A change in the chromosome number is called [MP PMT 1997]
A)
Chromosomal mutation done
clear
B)
Gene mutation done
clear
C)
Somatic mutation done
clear
D)
Polyploidy done
clear
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question_answer32)
A plant cell has potential to develop into full plant. This property of the plant cell is called [AIIMS 1998; HP PMT 2005]
A)
Tissue culture done
clear
B)
Totipotency done
clear
C)
Pleuripotency done
clear
D)
Gene cloning done
clear
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question_answer33)
Who coined the term 'heterosis' [BHU 2004]
A)
Shull done
clear
B)
Huxley done
clear
C)
Robard done
clear
D)
Tansley done
clear
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question_answer34)
The process of mating of individuals, which are more closely related than the average of the population to which they belong, is called [BHU 2000]
A)
Inbreeding done
clear
B)
Hybridization done
clear
C)
Heterosis done
clear
D)
Self breeding done
clear
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question_answer35)
Selection is the method of [MP PMT 2001]
A)
Plant physiology done
clear
B)
Plant breeding done
clear
C)
Genetics done
clear
D)
Cytology done
clear
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question_answer36)
Emasculation is a part of [CBSE PMT 2001; JIPMER 2002; BHU 2002; MHCET 2003, 04; DPMT 2004]
A)
Clonal selection done
clear
B)
Mass selection done
clear
C)
Hybridization done
clear
D)
Pure line selection done
clear
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question_answer37)
Haploid plants can be obtained by culturing [BVP 2001, 02]
A)
Young leaves done
clear
B)
Endosperm done
clear
C)
Pollen grains done
clear
D)
Root tips done
clear
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question_answer38)
Pure line breed refers to [AIIMS 2002]
A)
Heterozygosity only done
clear
B)
Homozygosity only done
clear
C)
Heterozygosity and linkage done
clear
D)
Homozygosity and self-assortment done
clear
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question_answer39)
The improved variety Indore 2 obtained by mutation breeding belongs to which of the following crop varieties [MHCET 2002]
A)
Bajra done
clear
B)
Cotton done
clear
C)
Sugar cane done
clear
D)
Potato done
clear
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question_answer40)
Production of plant without fertilization is done by [AFMC 2003]
A)
Vegetative propagation done
clear
B)
Transplantation done
clear
C)
Grafting done
clear
D)
None of these done
clear
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question_answer41)
Desired improved varieties of economically useful crops are raised by [BHU 2004]
A)
Migration done
clear
B)
Biofertilizer done
clear
C)
Hybridization done
clear
D)
Natural selection done
clear
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question_answer42)
Heterosis requires [CPMT 2005]
A)
Selection done
clear
B)
Crossing done
clear
C)
Transformation done
clear
D)
Mutation done
clear
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question_answer43)
Haploid from anther culture were first obtained in [CPMT 2005]
A)
Brassica done
clear
B)
Gossypium done
clear
C)
Nicotiana done
clear
D)
Datura done
clear
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question_answer44)
Hybridisation involves [Wardha 2005]
A)
Removal of stamens done
clear
B)
Removal of stigma done
clear
C)
Male sterility done
clear
D)
Female sterility done
clear
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