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.
| 201. |
Arabido brassica was produced using protoplates of:A. Arabidiopsis thalliana and Brassica campestrisB. Brassica oleracea and Arabidiopsis thallianaC. Brassica repa and Brassica nigraD. None of the above |
| Answer» Correct Answer - A | |
| 202. |
Protoplast fusion between two different species of Tobacco (Nicotiana tabacum and Nicotiana sylvestris) was successfully carried out by:A. MedgyesyB. Nagao et al.C. Zelcer et al.D. Whites |
| Answer» Correct Answer - A | |
| 203. |
Embryo growing in culture medium produces:A. SeedsB. EmbryoidsC. PlantletsD. Seedlings |
| Answer» Correct Answer - D | |
| 204. |
Coconut milk contains:A. Mineral and waterB. Growth promoting substancesC. Balanced ionic solutionD. None of the above |
| Answer» Correct Answer - B | |
| 205. |
When a diploid female plant is crossed with a tetraploid male, the ploidy level of endosperm cells in the resulting seed is:A. tetraploidyB. pentaploidyC. diploidyD. triploidy |
| Answer» Correct Answer - A | |
| 206. |
The reason why some mutations which are harmful do not get eliminated from gene pool is that :A. they have future survival valueB. they are recessive and carried by heterozygoous individualsC. they are dominant and show up more frequentlyD. genetic drift occurs because of a small population |
| Answer» Correct Answer - B | |
| 207. |
Which one of the following pairs is correclty matched?A. Inbreeding - Cross-pollinationB. Hyrbrid vigour - Maintained due to inbreeding depressionC. Male sterility- Self-pollinationD. Triticum boeticum - First domesticated wheat |
| Answer» Correct Answer - D | |
| 208. |
Which one of the following statements regarding pomato is correct?A. It is a product of somatic hybridisation.B. It is a product of gene manipulationC. Product of sexual hybridisationD. Product of cloning |
| Answer» Correct Answer - A | |
| 209. |
The scientific process by which crop plants are enriched with certain desirable nutrients is calledA. crop protectionB. breedingC. biofertilisationD. bioremediation |
| Answer» Correct Answer - C | |
| 210. |
The scientific process by which crop plants are enriched with certain desirable nutrients is calledA. crop protectionB. breedingC. biofortificationD. bioremediation |
| Answer» Correct Answer - C | |
| 211. |
Fungicides and antibiotics are chemicals thatA. enhance yield and disease resistanceB. kill pathogenic fungi and bacteria, respectivleyC. kill all pathogenic microbesD. kill pathogenic bacteria and fungi, respectively |
| Answer» Correct Answer - A | |
| 212. |
Match the following Columns. |
| Answer» Correct Answer - A | |
| 213. |
Purposeful manipulation of plant species is calledA. hybridisationB. germplasm collectionC. plant breedingD. conventional plant breeding |
| Answer» Correct Answer - C | |
| 214. |
Auxins and cytokinins together help in:A. Growth of callusB. Proper differentiation in callusC. Formation of callusD. None of the above |
| Answer» Correct Answer - B | |
| 215. |
Haploids are madr normal and diployed by given proper:A. Radition treatmentB. Colchicine treatmentC. Auxin and cytokinin treatmentD. None of the above |
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Answer» Correct Answer - B Haploids can be converted to normal diploid using colchicine treatment. Colchicine is an alkaloid, often called anaphasic poision as it inhibits the anaphase stage of mitosis by restricting the activities of spindle fibres after longitudinal splitting of chromosomes. Thus poleward movement of chromosomes is inhibited and the number of chromosomes becomes double (chromosomal doubling). |
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| 216. |
Polyploidy involvesA. increase in chromosomes numberB. decreases in chromosomes numberC. increases in number of genome setsD. None of the above |
| Answer» Correct Answer - C | |
| 217. |
The chemical which causes the doubling of chromosomes in haploids is known asA. methyleneB. benzeneC. colchicineD. None of these |
| Answer» Correct Answer - C | |
| 218. |
Which of the following is a chemical mutagen?A. Nitrous acidB. HydrazineC. Maleic hydrazideD. All of these |
| Answer» Correct Answer - D | |
| 219. |
Plants having similar genotypes produced by plant breeding are calledA. cloneB. haploidC. autopolyploidD. genome |
| Answer» Correct Answer - A | |
| 220. |
Assertion: Mass selection is useful in self-pollinated plants. Reason: Self-pollinated plants are homozygous which retain the selected traits in the progeny.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 |
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Answer» Correct Answer - A Mass selection is the most ancient method of selection which involves the selection of seeds of a number of plants on the basis of phenotypic characters like and size, fruit size, quality of fruit pollinated plants because they are usually homozygous and retain the selected traits in the progeny. |
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| 221. |
In which crops is the method of mass selection appliedA. Cross-pollinatedB. Self-pollinatedC. Both (a) and (b)D. Potato and Sugarcane |
| Answer» Correct Answer - C | |
| 222. |
Two methods of selection in plants areA. mass selectionB. pureline selectionC. Both (a) and (b)D. Hybridisation |
| Answer» Correct Answer - C | |
| 223. |
A method of selection useful for self-pollinatd plants isA. random selectionB. pureline selectionC. progeny selectionoD. mass selection |
| Answer» Correct Answer - B | |
| 224. |
A simple technology has been developed in India for plant breeders and farmers to use two plants as biofetilizers for growing rice. These are:A. Azotobacter and RhizobiumB. Chlorella and SpirulinaC. Azolla and nitrogen fixing BGAD. Riccia and Marchantia |
| Answer» Correct Answer - C | |
| 225. |
Which one of the following combination would a sugarcane farmer look for in the sugarcane cropA. Thick stem,long intermodes, high sugar content and disease resistantB. Thick stem, high sugar content and profuse floweringC. Thick stem, short inernodes, high sugar content, disease resistantD. Thick stem, low sugar content and disease resistant |
| Answer» Correct Answer - D | |
| 226. |
Genese for disease resistance and water stress or salt resis-tance are found in wild relatives of:A. Cultivated plantsB. Domesticated plantsC. Crop plantsD. All ot those |
| Answer» Correct Answer - D | |
| 227. |
Which method of crop improvement can be practiced by a farmer if he is inexperienced?A. Clonal selectionB. Mass selectionC. Pureline selectionD. Hybridisation |
| Answer» Correct Answer - B | |
| 228. |
The methods of crop improvements areA. induced mutationsB. induced polyploidyC. hybridisationD. All of these |
| Answer» Correct Answer - D | |
| 229. |
Methods used for crop improvement are:A. Diotechnology and genetic engineeringB. SelectionC. HtbridizationD. All of the above |
| Answer» Correct Answer - D | |
| 230. |
Wild plan ts are as important as cultivated plants as they:A. Carry important genetic element (DNA) or genesB. High tielding varietiesC. Have hybrid vigourD. All of the above |
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Answer» Correct Answer - A Wild plants have excellent capacity of carrying important genes for disease resitance, water stress resistence and frost resistance and thus there genetic materials are used to induce these characters in cultivated plants through hybridization or by recombinant DNA technology. Hihg yielding varieties are first made disease resistant before alowing them for field trials or for cultivation as crop plants. |
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