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Agriculture MCQ Quiz Hub
Agriculture Agriculture Genetics Plant Breeding and Biotechnology set-2
Choose a topic to test your knowledge and improve your Agriculture skills
1. Bulk population breeding is suitable for:
Fruit crops
Vegetable
Small grains
Flower crops
2. Who suggested the imbiitions theory of ascent of sap?
Sir J.C.Bose
Sachs
Strasburger
Dixon and Jolly
3. Dallus is:
An undifferentiated mass of cells
A gamete
A tissue
A modification of leaf
4. Carolus Linnaeus is credited with introducing the:
Law of limiting factors
Law of independent assortment
Binomial system of nomenclature
Laws of inheritance
5. Cauliflower cabbage broccoli kohlrabi and brussels sprouts have been derived from wild cabbage that still grows in coastal regions of:
Latin America
Mesopotamia
Europe and N. Africa
South Asia and South Africa
6. Who is regarded as the father of botany?
Theofrastus
Gregor Mendel
Carolus Linnaeus
Oswald Tippo
7. Who is credited with the discovery of mitosis?
Farmer and Moore
Huxley
Flemming
Robert Hooke
8. Characteristic feature of xerophytes is:
Long taproot
Leaves and stem with thick cuticle
Sunken stomata
All of the above
9. Characteristic feature of the hydrophytes is:
Reduced protective tissues
Feebly developed root system
Spongy stem
All the above
10. Chauncey Goodrich was the first _____ to publish a paper dealing with resistance of potatoes to the blight diseases:
Britisher
German
Dutch
American
11. China rose is a :
Herb
Shrub
Tree
Climber
12. Chromosome numbers in somatic cells of a maize plant are:
22
26
14
20
13. Chromosome which pair at meiotic prophase and are similar size shape structure and function are known as:
Homologous
Isocentric
Isochromosome
Acentric
14. CIMMYT is located at:
Miexico
England
Spain
Nigeria
15. Cliestogamy encourages:
Self pollination
Cross pollination
Apomixes
Inbreeding depression
16. Clone in general is:
Homozygous
Heterogeneous
Heterozygous
None of the above
17. Commercial banana have ______ instead of 22 chromosomes of ordinary diploid varieties:
13
23
33
43
18. Composites are developed by using:
Advanced generation seed mixtures obtained from high yielding intervarietal or interracial crosses
Hybrid directly from intervarietal crosses
Recurrent selection for specific combining ability
The hybrid of an inbred with an open-pollinated variety
19. Conifers are abundant in:
Tropical zone
Alpine zone
Temperate zone
Subtropical zone
20. Cotton:
Is a self-pollinated crop
Is a cross pollinated crop
Is an often-cross pollinated crop
Is an often-self pollinated crop
21. Creation of the world by God is basis of the:
Theory of eternity of present condition
Theory of special creation
Theory of catastrophism
All the above
22. Cross between cytoplasmic male sterile x cytoplasmic male fertile:
Produce sterile F1
Produce fertile F1
Produce fertile sterile in 1:1 ratio
None of the above
23. Cross of F1 hybrid with either parent is called:
Test cross
Single cross
Back cross
None of them
24. Crossing over occurs at:
Two strand stage
Four strand stage
Three strand stage
None of the above
25. Cuscuta is:
Total stem parasite
Partial stem parasite
Partial root parasite
Total root parasite
26. Cytogenetically the definitive nucleus is:
Haploid
Diploid
Triploid
Tetraploid
27. Date palm is:
Monoecious
Dioecious
Polygamous
None of the above
28. Degenerated parts of plants and animals which do not serve any useful purpose are known as:
Un-useful structures
Vestigial structures
Essential organs
Unwanted structures
29. Despite conspicuous deterioration of maize upon continuous setting it is more tolerant to inbreeding than:
Limabean
Barley
Alfalfa
Buckwheat
30. Details of the kreb s cycle were worked out by the use of:
Radioactive carbon compounds
Ultracentrifugation
Electron-microscopy
X-ray crystallography
31. Details of the kreb s cycle were worked out by the use of:
Radioactive carbon compounds
Ultracentrifugation
Electron-microscopy
X-ray crystallography
32. Development and formation of pollen grains in anther of the stamen is known as:
Pollination
Fertilization
Microsporogenesis
Megasporogenesis
33. Development of a fruit without fertilization is known as:
Parthenogenesis
Polyembrohy
Budding
Apomixes
34. Who invented first compound microscope?
Robert Hooke
Jansen
Leeuwenhoek
None of these
35. Development of seed without-sexual process is:
Apomixes
Polyembryony
Both (a) & (b)
None of the above
36. Development of the pollen tube the seed and the 3n endosperm double fertilization is characteristic features of:
Bryophytes
Pteridophytes
Gymnosperms
Angiosper
37. Disease reaction is by and large a process:
Physical
Chemical
Mechanical
Manual
38. Disease rsistance in barley is:
Quantitative characteristics
Qualitative characteristics
Both (a) & (b)
None of the above
39. DNA exists as a double helix as a result of hydrogen bonding between:
Sugar molecules
hosphate groups
Nucleohistones
Nucleosides
40. DNA polymerase:
Helps is DNA replication
Helps in RNA replication
Helps in protein synthesis
None of the above
41. DPD is the index of sucking power and is also known as:
Suction pressure
Wall pressure
Osmotic
Turgor pressure
42. During mitotic cell division the total chromosome number:
Remains the same
Gets halved
Gets doubled
None of them
43. Each cell of the female gametophyte is hapoid except:
Egg cell
Synergid cells
Antipodals cells
Definitive nucleus
44. Each gramme of water transpired absorbs ______ kj of latent heat from the leaf and its environment:
2.0 - 2.1
2.2-2.3
3.4-3.5
2.7-2.8
45. Each mature anther has:
One pollen sac
Two pollen sacs
Three pollen sacs
Four pollen sacs
46. Each megaspore mother cell finally produces:
Four megaspores
Two megaspores
Only one megaspore
None of the above
47. Each pollen mother cell produces four haploid cells as a result of:
Mitosis
Meiosis
One mitosis and then meiosis
None of the above
48. Each stamen is differentiated into:
Filament
Anther
Connective
All of the above
49. Electron microscope was invented by:
Jansen
Leeuwenhoek
Knoll and Ruska
None of the above
50. Emasculation is:
Removal of male parts from a bisexual flower
Removal of female parts
Removal of male and female parts
None of the above
51. Embryo-sac is:
Male gametophyte
Micro-gametophyte
Saprophyte
Female gametophyte
52. Endosperm is store house for germinating embryo and it contains:
Hormones
Vitamins
Enzymes
All the above
53. Epicalyx is the characteristic of the family:
Gramineae
Solanaceae
Malvaceae
Compositeae
54. Who founded the cell theory?
Robert Hooke
Von Mohl and Nageli
Schwann and Schleiden
Gres and Malpigi
55. Exchange of genetic material takes place between non-sister chromatids of homologous chromosomes during the:
Four stand stage in prophase I
Two strand stage in prophase I
Metaphase I stage in meiosis
Two strand stage in prophase II
56. Female reproductive organ in the flower is:
Calyx
Corolla
Stamens
Carpals
57. Flower colour in plants is a:
Qualitative chracter
Quantitative character
Both of them
None of them
58. Flower is specialized:
Shoots
Leaf
Stem
Tendril
59. Flowers having both androecium s and gynoecium s are said to be:
Hermaphrodite
Unisexual
Staminate
Pistilate
60. For Hardy - Weinberg law to operate:
The population should be large
There should be open pollination
There should be no selection
ll the above
61. Formation of new genes takes place due to:
Inversion
Transduction
Transversion
Mutation
62. Fruit of candytuft is known as:
Legume
Siliqua
Silicula
Capsule
63. Fruit of pea is known as:
Legume
Follicle
Siliqua
Capsule
64. Fruit of sunflower is:
Caryopsis
Samara
Cypsela
Nut
65. Fruits of calotropis are:
Legume
Siliqua
Capsule
Follicle
66. Fusion of the one sperm (male gamete) and definitive nucleus results in the formation of:
Endosperm
Embryo
Saprophyte
Zygote
67. Who established that character is transmitted from generation to generation through chromosomes?
Robert Brown
Robert Hooke
Nawaschin
Strasburger and Hertwig
68. Generally embryosac is:
Monosporic
Bisporic
Tetrasporic
Octosporic
69. Genes are made up of:
RNA only
DNA only
RNA nd DNA
Proteins
70. Genetics is the study of:
Genes
Gene interaction
Heredity and variation
DNA
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