1. If a character is cytoplasmically controlled then:
A. The progeny resembles female parent
B. The progeny resembles male parent
C. It's segregation of 3:1 is observed in F1
D. 5:1 segregation in F1
2. If a dihybrid is test crossed, the phenotypic ratio of progeny will be:
A. 9:3:3:1
B. 9;3;4
C. 1:1:1:1
D. 15;1
3. If a membrane allows the passage of both solvent and solute molecules it is said to be:
A. Non-permeable
B. Impermeable
C. Semi-Permeable
D. Permeable
4. In cotton, the popularly grown commercial hybrid varalaxmi is the product of:
A. Intraspecific hybridization in Gossypium hirsutum
B. Intraspecific hybridization in Gossypium barbadense
C. Interspecific hybridization between Gossypium hirsutum and Gossypium barbadense
D. Interspecific hybridization between Gossypium arboreum and Gossypium herbaceum
5. ICPH-8 was developed by using?
A. Cytoplasmic male sterility
B. Cytoplasmic genetic male sterility
C. Genetic male sterility
D. None of the above
6. Which one of the following is the site of protein synthesis?
A. Ribosomes
B. t-RNA
C. m-RNA
D. r-RNA
7. In mass selection, plants are selected on the basis of:
A. Phenotypes
B. Genotypes
C. Homozygosity
D. None of the above
8. In Primula:
A. Sporophytic incompatibility found
B. Gametophytic incompatibility found
C. Heteromorphic self-incompatibility found
D. Homomorphic incompatibility found
9. In RNA, nitrogen bases are same as in DNA, except:
A. Uracil instead of Thymine
B. Cytosin instead of Thymine
C. Adenine instead of Guanine
D. Thymine instead of Adenine
10. In self-incompatibility system:
A. Pollen not produced
B. Self-pollination takes place
C. Pollen does not germinate on self-pollination
D. All are correct
11. Which one of the following is not a dioecious plant?
A. Datepalm
B. Vallisnaria
C. Maize
D. Papaya
12. In wheat, cross-pollination is:
A. Less than 5%
B. More than 5%
C. 15%
D. 50%
13. Inflorescence of wheat is:
A. Catkin
B. Spike
C. Corymbs
D. Raceme
14.International Rice Research Institute (IRRI) is situated in:
A. Philippines
B. Japan
C. China
D. Burma
15. It has been estimated that a maize tassel produces at least _____ pollen grains for each kernel.
A. 5,000
B. 15,000
C. 25,000
D. 35,000
16. Which one of the following chemicals is used to induce polyploidy?
A. Ethyl methane sulphonate
B. Methyl methane sulphonate
C. Colchicines
D. Nitrous acid
17. Kreb's cycle begins with:
A. Glycogen
B. Lysine
C. Succinic acid
D. Acetyl COA
18. Most of the mutation have…………. effect:
A. Deleterious
B. Good
C. Bad
D. Both (b) & (c)
19. Mating between two individuals related by descent is:
A. Selfing
B. Inbreeding
C. Outbreeding
D. Maintenance of population
20. Megaspore mother cell produces four megaspores out of which usually:
A. Only one megaspore is functional and the remaining three megaspores abort
B. Two megaspores are functional and the remaining two megaspores abort
C. Three megaspores are functional and the fourth megaspore aborts
D. All the four megaspores are functional
21. Meiosis is essential for the organism for:
A. Inducing polyploidy
B. Growth of the organism
C. Keeping the number of chromosomes constant from one generation to the other
D. Increasing the number of cells
22. Meiosis occurs in:
A. Generative cells
B. Vegetative cells
C. Both (a) and (b)
D. All of the above
23.The categories of seeds which is required to buy afresh every time?
A. Variety
B. Hybrid
C. Synthetic
D. Composite
24. Microsporogenesis occurs in:
A. Roots
B. Stems
C. Anthers
D. Ovules
25. Multiline varieties are mixtures of:
A. Several morphologically different plants having identical disease resistance genes
B. Bulked progenies of different inbred lines
C. Several similar pure lines having different genes for disease resistance
D. Morphologically identical plants with different genetic make-up
26. Normal female in human being is:
A. Homogametic sex
B. Heterogametic sex
C. Homizygous for a gene
D. Gynandromorph
27. Nucleus seed is:
A. 100% pure
B. 80% pure
C. 50% pure
D. 40% pure
28. Number of chromosomes in endosperm is:
A. 2n
B. 3n
C. N
D. 4n
29. Observation of Hugo de Vries were based on:
A. Pisum stivum
B. Drossophila melangastor
C. Oenothera lamarkiana
D. Solanum tubersoum
30. Okra belongs to the family:
A. Solanaceae
B. Malvaceae
C. Cucurbitaceae
D. Liliaceae
31. Onion and Garlic are example of:
A. Rhizome
B. Tuber
C. Bulb
D. Corn
32. Operon concept was given by:
A. Watson ana Crick
B. Beedle and Tatum
C. Jacob and Manod
D. Mosselson and Stahi
33. Para-mutation in _____ is perhaps the one and only example of blending of alleles:
A. Sorghum
B. Maize
C. Pearl millet
D. Foxtail millet
34. Which of the following scientists is called the father of genetics?
A. Charles Darwin
B. Robert Hooke
C. Gregor Mendel
D. Watson ana Crick
35. Plasmid can:
A. Self-replicate
B. Integrate into host genome
C. Express the genes in it
D. All of the above
36. Pollination taking place between the flowers borne by the same plant is called:
A. Geitonogamy
B. Allogamy
C. Xenogamy
D. None of the above
37. Population improvement is used:
A. To accumulate deleterious alleles
B. To maintain homozygosity
C. To accumulate favourable alleles
D. To increase heterozygosity
38. Pure line is:
A. The progeny of selfed heterozygous plant
B. The progeny of selfed homozygous plant
C. The progeny of vegetatively propagated plant
D. The progeny of a nucleus seed
39. Pure line selection is:
A. A method of accumulating favourable alleles
B. Used to improve cross-pollinated crops
C. Used to improve self-pollinated crops
D. Used in vegetatively propagated crops
40. Quarantine is:
A. The name of a plant
B. The name of a character
C. The process of observation of alien material
D. None of the above
41. Random assortment of genes will occur if the gene are located on:
A. Same chromosome
B. Different chromosomes
C. Sex chromosome
D. Autosome
42. Recessive lethal genes are carried in the:
A. Heterogenous form
B. Heterozygous form
C. Homozygous form
D. Homogenous form
43. Recurrent selection is mostly used in:
A. Cross pollinated crops
B. Self-pollinated crops
C. Vegetatively propagated crops
D. Apomictic crop plants
44. Registered seed is directly produced from:
A. Foundation seed
B. Certified seed
C. Breeder's seed
D. All the above
45. Replacement of purine by pyrimidine and vice-versa is known as:
A. Transversion
B. Transduction
C. Translocation
D. All the above
46. Restorer gene is needed:
A. To make a plant correct
B. To bring fertility in male sterile plants
C. To make a plant resistant
D. To enhance the yield
47. Secondary nucleus in the embryo sac is:
A. Haploid
B. Diploid
C. Triploid
D. Hexaploid
48. Selfing in a plant will increase:
A. Heterozygosity
B. Homozygosity
C. Homogenecity
D. Heterogenecity
49. Single gene affecting more than one character is:
A. Polymorphism
B. Pleiotropy
C. Phenocopy
D. Complete penetrance
50. Specific combining ability of the parents should be high in order to develop:
A. Hybrids
B. Composites
C. Varieties
D. Synthetics
51. Spikelets are characteristic of the family:
A. Umbelliferae
B. Malvaceae
C. Leguminoceae
D. Gramineae
52. Sterility is most pronounced in the F1 generation following:
A. Intervarietal hybridization
B. Intravarietal hybridization
C. Intraspecific hybridization
D. Interspecific hybridization
53. Sterility of distant crosses can be overcome to produce hybrids by:
A. Pollen culture
B. Anther culture
C. Cell suspension culture
D. Embryo culture
54. Which of the following material makes the protein chain?
A. Carbohydrates
B. Sugars
C. Fatty acids
D. Amino acids
55. Which of the following leads to the cross-pollination?
A. Unisexuality
B. Dichogamy
C. Heterostyly
D. All the above
56. The application of principles of genetics for the improvement of mankind is:
A. Heredity
B. Linkage
C. Population genetics
D. Eugenics
57. The attraction between two dissimilar molecules is:
A. Cohesion
B. Adhesion
C. Surface tension
D. None of the above
58. The basis on which evolution works is:
A. Simplicity
B. Complexity
C. Variations
D. Adaptation
59. The best-known artificial system of classification is that promulgated by:
A. Sir Julian Huxley
B. Bentham and Hooker
C. Linnaeus
D. A.P. Candolle
60. The best method to break the un favourable linkage is:
A. Single seed descent method
B. Diallel selective mating
C. Pedigree method
D. Bulk method
61. The best method to carry forward the maximum number of genotypes/genes to the advanced
generations against the force of natural selection is:
A. Pedigree method
B. Bulk method
C. Single seed descent method
D. Back cross method
62. The branch of genetics which concerned with the gene and genotype frequencies in a random
mating population is:
A. Quantitative genetics
B. Behavioural genetics
C. Population genetics
D. Eugenetics
63. The chromosomal aberrations include:
A. Duplication and deficiency
B. Translocations and inversions
C. Polyploidy
D. All of the above
64. The components of synthetic population would have already been tested for:
A. SCA
B. Genetic advance
C. GCA
D. Both GCA & SCA
65. Which of the following is ploidy level of common wheat?
A. Tetraploid
B. Hexaploid
C. Diploid
D. Octaploid
66. The condition in which the anthers and stigmas of a bisexual flower mature at the same time
is known as:
A. Cleistogamy
B. Heterogamy
C. Syngamy
D. Homogamy
67. The condition in which the pollen of a flower has no fertilizing effect on the stigma of the
same flower is:
A. Herkogamy
B. Dichogamy
C. Dicliny
D. Self-incompatibility
68. The evolutionary history of a species is referred as:
A. Phylogeny
B. Progeny
C. Organic evolution
D. Natural selection
69. The following character (s) is/are the example of sex-linked inheritance in human beings:
A. Baldness
B. Haemophilia
C. Pattern of the hair
D. All of the above
70. The DNA is found in:
A. Nucleus
B. Mitochondria
C. Chloroplast
D. All of the above
71. The following part of the chromosome is responsible for the movement of
chromosome/chromatid to different poles:
A. Chromatin
B. Centromere
C. Chromomere
D. Satellite
72. The fusion of a male gamete with two polar nuclei is termed as:
A. Fertilization
B. Syngamy
C. Triple fusion
D. Pollination
73. The Mendel's laws of inheritance were rediscovered in 1900 by:
A. Bateson and Punnet
B. Beadle, Tatum and Leader-berg
C. Watson and Crick
D. Correns, de Varies and Tschermack
74. The nucleus of the cell was first discovered by:
A. Robert Brown
B. Robert Hooke
C. Strasburger
D. Boveri
75. The seeded fruit of rice or maize grain is called:
A. Berry
B. Pepo
C. Siliqua
D. Caryopsis
76. The process of double fertilization was first discovered by:
A. Sergei Nawaschin
B. Strasburger
C. Robert Brown
D. Hugo de Vries
77. The production of double cross hybrid in maize was first suggested by:
A. Shull
B. East
C. Jones
D. Hull
78. The replication of DNA is:
A. Conservative
B. Non-conservative
C. Semi-conservative
D. Disruptive
79. The segregation of individuals in the F2 or in a later generation of a cross, which shows a
more extreme development of a character than either parent is termed as:
A. Hybridization
B. Heterosis
C. Linkage
D. Transgressive segregation
80. The structure of chromosome can best be observed during:
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
81. The sugar found in DNA is:
A. Deoxyribose
B. Ribose
C. Fructose
D. Maltose
82. The term heterosis was first used by:
A. Mendel
B. Shull
C. Bateson
D. Punnet
83. The theory of genes in the chromosomes was introduced by:
A. Mendel
B. Morgan
C. Strasburger
D. Hugo de Vries
84. The transfer of pollen grains from the anther to the stigma is called:
A. Fertilization
B. Mating
C. Double fertilization
D. Pollination
85. Exchange of chromosomal segments between non-homologous chromosomes is
A. Transversion
B. Crossing over
C. Translocation
D. Inversion
86. Theory of Natural Selection was based on:
A. Over-production of off springs and consequent struggle for existence
B. Variation and its inheritance
C. Elimination of unfavorable variations
D. All the above
87. Theory of overdominance states:
A. Dominant homozygote is superior to recessive homozygote
B. Recessive homozygote is superior to dominant homozygote
C. Heterozygote is superior to both the homozygote
D. None of the above
88. When two genes show independent segregation, a genotype AaBb will produce ______ types
of gametes:
A. 4
B. 3
C. 2
D. 1
89. Triticale is a cross between:
A. Wheat & barley
B. Wheat & rye
C. Barley & rye
D. Wheat & oat
90. Vivipary means:
A. Seed germinates inside the fruit while it is still on the parent tree
B. Seed germinates as usual
C. Seed dormancy is very long
D. None of above
91. When an F1 is crossed with the recessive homozygote parent, the cross is known as:
A. Back cross
B. Top cross
C. Test cross
D. Single cross
92. An individual having both the alleles (recessive and dominant) for a particular character, is
said to be:
A. Monoecious
B. Homozygous
C. Dioecious
D. Heterozygous
93. When homologous chromosomes fail to pair in prophase of meiosis, the phenomenon is
known as:
A. De synapsis
B. Non-disjunction
C. Asynapsis
D. Disjunction
94. Argemone mexicana is an objectional weed in:
A. Wheat
B. Barley
C. Rapeseed/Mustard
D. Chick pea
95. Breeder seed is the progeny of:
A. Foundation seed
B. Registered seed
C. Nucleus seed
D. Certified seed
96. Certification is not required for:
A. Nucleus seed
B. Foundation seed
C. Certified seed
D. All of the above
97. In sunflower, production of foundation seed requires an isolation distance of:
A. 400 m
B. 800 m
C. 200 m
D. 100 m
98. Physical purity of 95% is permissible for the foundation and certified seed of:
A. Soya bean
B. Groundnut
C. Spinach
D. Carrot
99. The type of cell division take place in the cells of somatic tissues
A. Mitosis
B. Meiosis
C. Both A) and B)
D. None of the above
100. Crossing over takes place during which sub stage of the meiosis?
A. Leptotene
B. Zygotene
C. pachytene
D. Diplotene
