1. The cry1 proteins are insecticidal to
A. Lepidoptera
B. Coleoptera
C. Diptera
D. Lepidoptera and Diptera
2. The ability of a molecule to exist in more than one chemical form is called as
A. Mimicry
B. Isoallelism
C. Isotopes
D. Tautomerism
3. In maize how many secondary trisomics can be developed
A. 20
B. 10
C. 40
D. 19
4. Balbiani rings are found in
A. Lampbrush chromosome
B. Polytene chromosome
C. Isochromosome
D. B chromosome
5. Soybean and brinjal originated from
A. Hindustan center of origin
B. China center of origin
C. Afghanistan center of origin
D. South America center of origin
6. Botanical Survey of India was established in the year
A. 1890
B. 1875
C. 1910
D. 2000
7. Plasma gene mutation is induced by
A. Ethyle methane sulphonate (EMS)
B. Ethidium bromide (EtBr)
C. Methyle methane sulphonate (MMS)
D. All of the above
8. Sporophytic self-incompatibility was first reported in 1950 by
A. Hughes and Babcock
B. East and Mangelsdorf
C. Longquist
D. None of the above
9. Term soma clonal variation was given by
A. Skoog and Miller
B. Kasha and Kao
C. Hanning
D. Larkin and Scowcroft
10. Ear to row method of breeding was developed by
A. Hayes and Garber
B. Hull
C. Hopkins
D. Jones
11. Heterosis can be fixed by
A. Asexual reproduction
B. Apomixis
C. Balanced lethal system
D. All of the above
12. Heterosis is confined only to
A. F2 generation
B. F3 generation
C. F5 generation
D. None of the above
13. The gca variance has positive correlation with
A. Narrow sense heritability
B. Broad sense heritability
C. Both A) and B)
D. None of the above
14. The average performance of a strain in a series of hybrid combinations is termed as
A. General combining ability
B. Specific combining ability
C. Heterotic performance
D. Both A) and C)
15. The sca is estimated from
A. Half sib families
B. Full sib families
C. Both A) and B)
D. None of the above
16. Improvement in the mean genotypic value of selected plants over the parental population is
known as
A. Genetic advance
B. Genetic gain
C. Selection differential
D. All of the above
17. Low heritability with high genetic advance revealed
A. Character is governed by dominance gene effect
B. Character is governed by additive gene effect
C. Selection may be effective for the characters
D. Both B) and C)
18. Term protoplast was given by
A. EC Cocking
B. Klerker
C. Purkinje
D. Hanstein
19. Father of plant tissue culture is
A. Gottlieb haberlandt
B. Laibach
C. Maheshwari
D. None of the above
20. The formula for estimation of broad sense heritability is
A. H (bs) = Vg/Vp X 100
B. H (bs) = Vp/Vg X 100
C. H (bs) = VA/VP X 100
D. None of the above
21. Additive gene action includes
A. Additive genetic variance
B. Additive x Additive type of epistasis
C. Both A) and B)
D. None of the above
22. Who divides genetic variance into three components viz., additive, dominance and epistatic
A. Mather
B. Wright
C. Fisher
D. None of the above
23. First stability model was developed by
A. Freeman and Perkins
B. Perkins and Jinks
C. Eberhart and Russel
D. Finlay and Wilkinson
24. Buffering capacity of a genotypes to environmental fluctuation is known as
A. Adaptation
B. Homeostasis
C. Acclimatization
D. All of the above
25. Triple test cross was proposed by
A. Jinks and Jones
B. Freeman
C. Fisher
D. Kearsey and Jinks
26. Triple test cross analysis is an extension of
A. Diallel mating design
B. LinexTester mating design
C. North Carolina Design 2
D. North Carolina Design 3
27. Most powerful design to evaluate biparental crosses is
A. North Carolina Design 1
B. North Carolina Design 2
C. North Carolina Design 3
D. Both A) and C)
28. Six parameter model of generation mean analysis was developed by
A. Hayman
B. Fisher
C. Jinks and Jones
D. None of the above
29. Six parameter model of generation mean analysis is used when
A. Epistasis is present
B. Epistasis is absent
C. In both the conditions
D. None of the above
30. Five parameter model of generation mean analysis requires
A. Three crop seasons for complete study
B. Four crop seasons for complete study
C. Two crop seasons for complete study
D. Six crop seasons for complete study
31. Scaling test is used to
A. Determine the presence or absence of epistasis
B. Determine the type of epistasis
C. Both A) and B)
D. None of the above
32. The significance of scale “C” in scaling test indicates
A. Additive x Additive type of epistasis
B. Additive x Dominance type of epistasis
C. Dominance x Dominance type of epistasis
D. All of the above
33. Generation mean analysis is based on
A. First order statistics
B. Second order statistics
C. Third order statistics
D. Both A) and C)
34. In line x tester analysis the tester should have
A. Broad genetic base
B. Wider adaptability
C. Low yield potential
D. All of the above
35. If there is 18 lines and 3 testers for line x tester analysis, the total number of single crosses
will be
A. 210
B. 48
C. 54
D. 420
36. What is not true about Line x Tester analysis
A. Analysis involves both first and second order statistics
B. Provides information regarding to gca and sca variances and their effects
C. Provides information regarding to additive and dominance components
D. Unable to evaluate large number of genotypes
37. Partial diallel does not provide information about
A. Additive and dominance components
B. GCA and SCA variances
C. GCA effects
D. SCA effects
38. What will be total number of single crosses in full diallel analysis if 10 parents are selected
for the study
A. 100
B. 45
C. 90
D. 70
39. Growing seeds of various entries in the fields and harvesting fresh seeds for further storage
is known as
A. Germplasm rejuvenation
B. Germplasm collection
C. Germplasm regeneration
D. Both A) and C)
40. Gradual loss of variability from cultivated species, and their wild forms and wild relatives is
known as
A. Genetic shift
B. Random shift
C. Both A) and C)
D. Genetic erosion
41. Gene pool concept was proposed by
A. Harlan and de Wet
B. Strausberger
C. Weismann
D. None of the above
42. Gene pool-4 also known as
A. Gene ocean
B. GP-4
C. Both A) and B)
D. None of the above
43. What is true about land races
A. These are primitive varieties
B. Evolved through both natural and artificial selection
C. They are storehouse of genetic variability
D. All of the above
44. In situ germplasm conservation includes
A. Natural park
B. Biosphere reserve
C. Gene sanctuary
D. All of the above
45. Who categorized seeds into orthodox and recalcitrant
A. Brown
B. Robert
C. Frankel
D. None of the above
46. Type of germplasm collection which is actively used in breeding programme
A. Base collection
B. Active collection
C. Working collection
D. None of the above
47. The concept of core collection was put forth by
A. Frankel
B. Brown
C. Both A) and B)
D. Robert
48. IW stands for
A. Internet web
B. Indian warriors
C. Indigenous wild
D. None of the above
49. TN1, IR8 and IR28 rice varieties are
A. Domesticated varieties
B. Hybridization based varieties
C. Secondary introduced varieties
D. Primary introduced varieties
50. NBPGR was established in the year
A. 1976
B. 1975
C. 1977
D. 1974
51. Vybrid is
A. A progeny obtained through cell culture
B. A progeny obtained from interspecific hybridization
C. A progeny obtained from cross between two facultative apomicts
D. None of the above
52. Genetic male sterility is maintained by
A. Anther culture
B. Sib mating
C. Selfing
D. All of the above
53. In barnase/barstar system of genetically engineered genetic male sterility, barnase gene is
taken from
A. Blue green algae
B. Aspergillus
C. Bacillus amyloliquefaciens
D. Bacillus thuringiensis
54. Selection within pure lines is
A. Much more effective
B. Not effective
C. Beneficial for crop improvement
D. None of the above
55. Loss in vigour or fertility as a result of inbreeding is known as
A. Inbreeding coefficient
B. Inbreeding depression
C. Genetic erosion
D. All of the above
56. A condition in which F1 hybrid express increase in vegetative growth but not in yield and
adaptation is known as
A. Heterobeltiosis
B. Luxuriance
C. Standard heterosis
D. All of the above
57. Luxuriance is also known as
A. Standard heterosis
B. Economic heterosis
C. Heterobeltiosis
D. Pseudo heterosis
58. When selection is done for only one extreme of a particular character, it is known as
A. Mass selection
B. Directional selection
C. Pureline selection
D. Disruptive selection
59. The proportion of different types of allele in a random mating population is known as
A. Gametic frequency
B. Genotypic frequency
C. Gene frequency
D. Both A) and C)
60. According to Hardy Weinberg law, in random mating populations gene and genotypic
frequencies remain constant if there is
A. No selection
B. No migration
C. No mutation and random drift
D. All of the above
61. Genetic assortative mating is also known as
A. Inbreeding
B. Outbreeding
C. Advance breeding
D. None of the above
62. Genetic assortative mating increases
A. Homozygosity
B. Prepotency
C. Both A) and B)
D. Heterozygosity
63. Maize, Sorghum and Bajra showed
A. High inbreeding depression
B. Moderate inbreeding depression
C. Low inbreeding depression
D. Lack of inbreeding depression
64. Dominance of linked gene hypothesis was proposed by
A. Jinks
B. Shull
C. Collins
D. Jones
65. The genes that increase the spontaneous mutation rate of other genes of the genome are known
as
A. Mutable genes
B. Mutator genes
C. Both A) and B)
D. Antimutator genes
66. Which of the following are densely ionizing radiations
A. Fast neutrons
B. Thermal neutrons
C. Alpha rays
D. All of the above
67. Which of the following is a deamination agent
A. Nitrous acid
B. EMS
C. Acriflavin
D. Both A) and C)
68. Genetic make up of a genotype is known as
A. Genetic value
B. Breeding value
C. Genotype
D. Phenotype
69. Cross pollinated population is
A. Homozygous and homogenous
B. Homozygous and heterogenous
C. Heterozygous and homogenous
D. Heterozygous and heterogenous
70. Vilmorin practiced individual plant selection in……..for sugar content
A. Maize
B. sugarcane
C. potato
D. Sugarbeet
71. Johannsen proposed Pureline concept in 1903 working with princes variety of
A. Ragi
B. Sorghum
C. Bajra
D. Rajma
72. The concept of boom and bust cycle was proposed by
A. Palmer
B. Johannsen
C. Vilmorin
D. Pristely
73. Recombinant inbred lines developed by
A. Single seed descent method
B. Back cross method
C. Recurrent selection
D. Pedigree selection
74. Near isogenic lines developed by
A. Single seed descent method
B. Back cross method
C. Recurrent selection
D. Pedigree selection
75. Atlas 66 is a high protein variety of
A. Maize
B. Chickpea
C. Wheat
D. Rice
76. Chromosome doubling action of colchicine is described by
A. Blakeslee and Nebel
B. Benjamin Franklin
C. P.S. Pelletier
D. None of the above
77. Chemical formula of colchicine is
A. C22H28O8N
B. C22H25O6N
C. C24H28O9N
D. None of the above
78. Nicotiana tabacum is a cross between
A. N. sylvestris and N. tomentosa
B. N. sylvestris and N. rustica
C. Both A) and B)
D. None of the above
79. A condition in which both the alleles of a gene express themselves in the heterozygote is
known as
A. Codominance
B. Overdominance
C. Incomplete dominance
D. None of the above
80. Test cross ratio for supplementary gene action is
A. 1:1:1:1
B. 2:1:1
C. 1:1:2
D. 1:2:1
81. Plasma genes segregate during which of the following?
A. Anaphase I
B. Anaphase II
C. Mitotic anaphase
D. Both A) and C)
82. Variegation may be produced by which of the following?
A. Nuclear genes
B. Plasma genes
C. Environmental factors
D. All of the above
83. Presence of DNA in mitochondria was first reported by
A. Sanger and coworkers
B. Plaut and coworkers
C. Nass and coworkers
D. Lewis and coworkers
84. Which of the following is not true about mutation?
A. Generally, they are recessive and harmful
B. They are recurrent and random
C. Generally, they are reverse
D. All of the above
85. Crop improvement can utilize which of the following mutation?
A. Vital
B. Lethal
C. Sub vital
D. Sub lethal
86. The first gamma garden was built in
A. Austria
B. USA
C. Japan
D. China
87. The primary effect of radiation is
A. Excitation
B. Chromosome damage
C. Ionization
D. Free radical formation
88. Which of the following is a non-ionizing radiation?
A. Beeta rays
B. Alpha rays
C. UV rays
D. All of the above
89. A cell without cell wall is known as
A. Protoplasm
B. Protoplast
C. Cytoplast
D. Cytoplasm
90. The target insect pests for Cry1AC are
A. Tobacco budworm
B. Cotton bollworm
C. Pink bollworm
D. All of the above
91. Golden rice was developed by
A. GS Khush
B. Yuan Longping
C. Ingo Potrykus
D. None of the above
92. Flaver Savr Tomato was developed by using
A. RNAi technology
B. Antisense RNA technology
C. Both A) and B)
D. None of the above
93. The term clone was first used by
A. Kasha and Kao
B. Hanning
C. Takebe
D. Webber
94. High Auxin/cytokinin ratio promotes
A. Bud formation and fruit development
B. Callus formation and growth of callus
C. Cell proliferation and root differentiation
D. All of the above
95. What is the role of Vit. ‘B1’ in tissue culture media?
A. Amino acid biosynthesis and carbohydrates metabolism
B. Inhibition of callus formation
C. It has growth regulatory effect
D. All of the above
96. The ability of a plant cell to form whole plant is termed as
A. Prepotency
B. Totipotency
C. Both A) and B)
D. None of the above
97. The matrix of artificial seeds contains
A. Potassium alginate
B. Sodium alginate
C. Calcium alginate
D. All of the above
98. Bulbosum techniques is used for
A. Normal diploid production
B. Triploid production
C. Hexaploid production
D. Haploid production
99. Viability of protoplast is tested by using
A. Fluorescein di acetate (FDA) staining
B. Phenosafranine staining
C. Calcofluor white (CFW) staining
D. All of the above
100. Star activity is a specific characteristic of
A. Type I restriction enzyme
B. Type II restriction enzyme
C. Type III restriction enzyme
D. All of the above
