InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Hybridisation through protoplast fusion is calledA. crossing overB. emasulationC. asexual hybridisationD. somatic hybridisation |
| Answer» Correct Answer - D | |
| 2. |
Best varieties of sugarbeet areA. tetraploidsB. diploidsC. triploidsD. allopolyploids |
| Answer» Correct Answer - C | |
| 3. |
Seedless variety of watermelon canbe developed by hybridizing 4n plant with 2n plant to induce:A. DiploidyB. TriploidyC. TetraploidyD. Hexaploidy |
| Answer» Correct Answer - B | |
| 4. |
Breeding crops with higher levels of vitamins and minerals or higher protein and healthier fats, the most practical means it improve public health, is called:A. BiomagnificationB. BiofortificationC. TotipotencyD. BOD |
| Answer» Correct Answer - B | |
| 5. |
Rice variety named ADT-37 is formed as a result of cross betweenA. Oryza japonica `xx` O. indicesB. Oryza astevium `xx` O. vulgareC. Oryza sativa `xx` O. japonicaD. None of the above |
| Answer» Correct Answer - A | |
| 6. |
Dharwar American Variety of cotton is the product ofA. mass selectionB. mutual breedingC. clonal selectionD. parasexual hybridiation |
| Answer» Correct Answer - D | |
| 7. |
The native place of Hevea rubber is:A. IndiaB. MalayaC. IndonesiaD. Brazil |
| Answer» Correct Answer - D | |
| 8. |
Dwarf wheat variety was discovered by:A. BorlaugB. SwaminathanC. VavilovD. None of these |
| Answer» Correct Answer - A | |
| 9. |
Saccharum barberi is grown inA. North IndiaB. South IndiaC. West IndiaD. None of these |
| Answer» Correct Answer - A | |
| 10. |
Desired improved varieties of economically useful crops are raised byA. migrationB. biofertiliserC. hybridisationD. natural selection |
| Answer» Correct Answer - C | |
| 11. |
Smooth leaved and nectar less cotton varieties do not attract which one of following pestsA. bollwormsB. jassidsC. leaf beetleD. aphids |
| Answer» Correct Answer - A | |
| 12. |
Some pollens are vible for less than 24 hours as in case of:A. Barley and riceB. BrinjalC. GossypiumD. Date palm |
| Answer» Correct Answer - A | |
| 13. |
In plant breeding programme, the entire collection (of plants/seed) having all the diverse alleles for all genes in a given crop is calledA. Cross-hybridisation among the selected parents.B. Evaluation and selection of parents.C. Germplasm collection.D. Selection of superior recombinats. |
| Answer» Correct Answer - C | |
| 14. |
Which of the following ia s case of wrong matchingA. Micropropagation-In vitro productio of plants in large numberB. Callus-Unorganized mass of cells produced in tissue cultureC. Somatic hybridization-Fusion of two divers cellsD. Vector DNA-Site for t-RNA synthesis |
| Answer» Correct Answer - D | |
| 15. |
The three topmost major crops of the world in the order of total production areA. Wheat `gt` rice `gt` maizeB. rice `gt` wheat `gt` maizeC. wheat `gt` maize `gt` riceD. rice `gt` maize `gt` wheat |
| Answer» Correct Answer - A | |
| 16. |
A widely cultivated new world crop of kerala is:A. MaizeB. PaddyC. ManihotD. Musa |
| Answer» Correct Answer - C | |
| 17. |
Which one belongs to old world?A. SquashB. PumpkinC. MangoD. Guava |
| Answer» Correct Answer - C | |
| 18. |
Haploidy in angiosperms was first reported in:A. Datura a stramoniumB. Datera innoxiaC. Datura metelD. Nicotiana tabacum |
| Answer» Correct Answer - A | |
| 19. |
In which of the following crops has autopolyploidy been reported?A. TomatoB. PotatoC. BeansD. Mango |
| Answer» Correct Answer - C | |
| 20. |
Somaclonal varations appear in plants:A. Growing in polluted soil or waterB. Exposed to gamma raysC. Raised in tissue cultureD. Transformed by recombinant DNA technology |
| Answer» Correct Answer - C | |
| 21. |
Over 100 type of somaclonal variations have been reported in potato by:A. CarlsonB. NitschC. WhitesD. Shephard et al. |
| Answer» Correct Answer - B | |
| 22. |
Somaclonal variations are the ones.A. caused by mutagensB. produced during tissue cultureC. induced during sexual embryogenyD. caused by gamma rays |
| Answer» Correct Answer - B | |
| 23. |
Hybrid vigour is best maintained in crops byA. emasulationB. vegetatively propogation cropsC. outbreedingD. None of these |
| Answer» Correct Answer - C | |
| 24. |
The term heterosis was first coined by:A. McClintockB. PoweriC. SwaminathanD. None of these |
| Answer» Correct Answer - D | |
| 25. |
The term heterosis was first used by:A. ShullB. BorlaugC. M.S. SwaminathanD. R. Mishra |
| Answer» Correct Answer - A | |
| 26. |
Heterosis lost due to inbreeding is known asA. outbreeding depressionB. inbreeding depressionC. hybrid vigourD. None of these |
| Answer» Correct Answer - B | |
| 27. |
Assertion: Variations present in pureline is due to environment. Reason: Pureline have identical genotype.A. Both Assertion and Reason are true and Reason is correct explanation of Assertion.B. Both Assertion and Reason are true, but reason is not the correct explanation of AssertionC. Assertion is true, but the Reason is falseD. Assertion is false, but the Reason is true |
|
Answer» Correct Answer - A The self-pollinated progeny of a homogygous plant constitutes a pureline. All the plants have identical genotype, that is why variations present within a pureline is due to the environment which have no genetic basis. |
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| 28. |
Importing better varieties and plants from outside and acclimating them to local environment is calledA. cloningB. heterosisC. selectionD. introduction |
| Answer» Correct Answer - D | |
| 29. |
Most of our crops are,A. AutopolyploidsB. AllopolyploidsC. Auto-alloplyploidsD. None of these |
| Answer» Correct Answer - A | |
| 30. |
The term heterosis was given by:A. ShullB. FaichildC. KolreuterD. None of these |
| Answer» Correct Answer - A | |
| 31. |
Adjustment of a new plant in changed environment is called :A. AdaptationB. AcclimatizationC. SelectionD. Tolerance |
| Answer» Correct Answer - B | |
| 32. |
The capacity to generate a whole plant from any cell/explant is called:A. Somaclone productionB. TotipotencyC. Sometic hybrdizationD. None of these |
| Answer» Correct Answer - B | |
| 33. |
Culture medium should be sterilized by:A. AutoclavingB. FlameC. UV-lampD. Chemicals |
| Answer» Correct Answer - A | |
| 34. |
Tissue culture is applied for:A. Pollen cultureB. Ovary cultureC. Endosperm and ambryo cultureD. All of the above |
| Answer» Correct Answer - D | |
| 35. |
Explant should be sterilized by:A. AutoclavingB. UV-lampC. FlameD. Sodium hypochloride solution and detergent solution or chlorine water |
| Answer» Correct Answer - D | |
| 36. |
Transfer of explant onto culture medium is called:A. IncubationB. IncoculationC. Callus formationD. None of these |
| Answer» Correct Answer - B | |
| 37. |
Embryoids are produced from:A. Growing callusB. ZygoteC. PlantletsD. Organs |
| Answer» Correct Answer - A | |
| 38. |
Androgenic haploids are:A. Raising stock for micropropagationB. Induction of mutationC. Knowing effect of all genesD. Preparation of homozygous diploids |
| Answer» Correct Answer - D | |
| 39. |
Androgenic haploid culture was first performed byA. Guha and MaheshwariB. StewardC. Skoog and MillerD. Halperin and Wethereli |
| Answer» Correct Answer - A | |
| 40. |
Androgenic haploids in Datura innoxia were produced by:A. Maheshwari and GuhaB. WhitesC. Nitsch and BourginD. None of these |
| Answer» Correct Answer - A | |
| 41. |
Androgenic haploids were first produced by:A. Pollen cultureB. Embryo cultureC. Tissue cultureD. Callus |
| Answer» Correct Answer - A | |
| 42. |
Androgenic haploids are:A. Highly fertileB. SterileC. Fast growingD. None of these |
| Answer» Correct Answer - B | |
| 43. |
Most of the anther and pollen culture experiments were performed on the members of:A. SolanaceaeB. CruciferaeC. CucurbitaceaeD. Fabaceae |
| Answer» Correct Answer - A | |
| 44. |
Androgenic haploids were first produced by pollen culture of:A. TomatoB. PatatoC. Datura innoxiaD. Petunia alba |
| Answer» Correct Answer - C | |
| 45. |
First pollen plant was produced by:A. Guha and MaheshwariB. SwaminathanC. Guha and MaaheshwariD. H.Y. Mohan Ram |
| Answer» Correct Answer - A | |
| 46. |
NP-4, Kalyan Sona and S-227 wheat varieties have developed throughA. `gamma`-ray irradiationB. multiple crossingC. selectionD. genetic engineering |
| Answer» Correct Answer - C | |
| 47. |
To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?A. Apical meristem onlyB. Palisade parenchymaC. Both apical and axillary meristemsD. Epidermis only |
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Answer» Correct Answer - C Both apical and axillary meristems are free of virus for healthy plant cultivation because of strong interferon activity in these region. These tissues form a protective impermeable covering around themselves, which is non-penetrable by any pathogen. Hence, these tissues are used in the production of disease-free plants by tissue culture. |
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| 48. |
Variation sin plants produced by tissue culture is known as:A. Androgenic variationB. Somaclonal variationsC. CybridizationD. Induced variations |
| Answer» Correct Answer - B | |
| 49. |
Sonalika and kalyan Sona are high yielding varieties ofA. sugarcaneB. riceC. wheatD. maize |
|
Answer» Correct Answer - C Sonalika and Kalyan Sona are wheat varieites that were introduced in India in 1963. These are high yeilding drug resistant varieties. |
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| 50. |
In tissue culture, shoot formation in callus can be induced byA. IAAB. ABAC. `GA_(3)`D. Kinetin |
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Answer» Correct Answer - D Kinetic is a type of cytokinin a class of plant hormone that promotes cell division. In tissue culture, kinetin helps to produce new leaves, chloroplast in leaves, lateral shoot growth and adventitous shoot formation. |
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