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Q. No.The Indian Agricultural Research Institute, New Delhi, has released several vegetable crops that are rich in vitamins and minerals. Identify the incorrectly matched:
1.
vitamin A enriched: carrots, spinach, pumpkin;
2.
vitamin C enriched: bitter gourd, bathua, mustard, tomato;
3.
iron and calcium enriched: spinach and bathua;
4.
Omega fatty acids enriched: beans - broad, lablab, French and garden peas.
76%
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The plantlets produced during plant tissue culture are called somaclones because:
| 1. | They can be produced in a very short span of time |
| 2. | They are the result of the somatic hybridization of two cells |
| 3. | The gametes develop parthenogenetically to produce genetically identical plantlets |
| 4. | They are genetically identical to the original plant from which they were grown |
Subtopic: Plant Tissue Culture |
73%
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Consider the following statements regarding bird flu:
| I: | Viruses causing bird flu belong to Influenza virus A strain |
| II: | The most pathogenic strain of this virus causing bird flu is H1N1 |
| III: | Culling and vaccinating livestock is a short term strategy to prevent flu pandemic. |
| IV: | A human vaccine is available to control the spread of disease in human populations. |
Of the above statements, the correct are:
| 1. | I and III only | 2. | II and IV only |
| 3. | I, III and IV only | 4. | I, II, III and IV |
Subtopic: Introduction |
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Hisardale is a new breed of:
| 1. | Sheep developed by crossing Bikaneri ewes and Marino rams. |
| 2. | Sheep developed by crossing Bikaneri rams and Marino ewes. |
| 3. | Goat developed by crossing Bikaneri ewes and Marino rams. |
| 4. | Goat developed by crossing Bikaneri rams and Marino ewes. |
90%
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Which of the following is not correctly matched?
| 1. | Green revolution - A significant increase in agricultural productivity resulting from the introduction of high-yield varieties of grains, the use of pesticides, and improved management techniques. |
| 2. | White revolution – Also called as Operation Flood, it refers to a significant increase in milk production which made India the largest milk producer in the world. |
| 3. | Blue revolution - Management of water resources that can steer humanity to achieve drinking water and crop irrigation security. |
| 4. | Pisciculture - The farming of aquatic organisms such as fish, shellfish, and even plants. |
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Arrange the following steps of a plant breeding program in a correct chronological manner:
| I. | Selection and testing of superior recombinants |
| II. | Collection of variability |
| III. | Cross hybridisation among the selected parents |
| IV. | Evaluation and selection of parents |
| V. | Testing, release, and commercialisation of new cultivars |
| 1. | II, IV, I, III, V | 2. | IV, I, II, III, V |
| 3. | II, IV, III, I, V | 4. | IV, III, II, I, V |
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The main reason for the success of the green revolution was:
| 1. | Improvement in the efficiency of chemical pesticides |
| 2. | Improvement in irrigation facilities |
| 3. | Equitable distribution of land among farmers |
| 4. | Development of HYV varieties |
Subtopic: Plant Tissue Culture |
68%
From NCERT
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Conventional breeding is often constrained by the availability of a limited number of disease-resistance genes that are present and identified in various crop varieties or wild relatives. This is most commonly overcome by:
| 1. | Inducing mutations | 2. | Somaclonal variations |
| 3. | Genetic engineering | 4. | Plant introduction |
55%
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PusaSem 2, a variety of flat bean, is resistant to all the following pests except:
| 1. | Aphids | 2. | Jassids |
| 3. | Fruit borer | 4. | Bollworm |
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The algae Spirulina, Chlorella and the microbe Methylophilus methylotrophus can be used as a source of:
| 1. | Vitamin A and C | 2. | Minerals like calcium |
| 3. | Single Cell Protein | 4. | Omega 3 fatty acids |
93%
From NCERT
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