Q. No.All the following plants require honey bees as their main pollinators except:
1.
Banana
2.
Brassica
3.
Apple
4.
Pear
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| I: | New cultivars produced by plant breeding are first evaluated in research fields and their performance is recorded under ideal fertiliser application, irrigation, and other crop management practices. |
| II: | After evaluation in research fields, the new cultivars are tested in farmers’ fields for at least three growing seasons at several locations in the country. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
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| I: | SCP is commonly grown on agricultural waste products, and as such inherits the ecological footprint and water footprint of industrial agriculture. |
| II: | Microorganisms usually have a much higher protein content of 30–70% in the dry mass than vegetables or grains. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
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The first step to achieve somatic hybridization in plants will be:
| 1. | growing individual cells into callus |
| 2. | fusion of two cells in the presence of polyethylene glycol |
| 3. | converting plant cells into protoplast by cellulase |
| 4. | growing plant cells in cytokinin |
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A plant disease not caused by a fungal pathogen will be:
| 1. | Brown rust of wheat | 2. | Black rot of crucifers |
| 3. | Red rot of sugarcane | 4. | Late blight of potato |
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Identify the option where all columns are correctly matched:
|
|
Crop |
Variety |
Resistant to |
|
1. |
Rapeseed mustard |
Pusa Sawani |
Shoot and fruit borer |
|
2. |
Chilli |
Himgiri |
Chilli mosaic virus |
|
3. |
Cauliflower |
Pusa Shubhra |
Bacterial blight |
|
4. |
Flat bean |
Pusa Sem 2 |
Aphids |
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In north India, a sugarcane farmer would be best advised to grow:
| 1. | Saccharum barberi |
| 2. | Saccharum officinarum |
| 3. | A hybrid of Saccharum barberi and Saccharum officinarum |
| 4. | A hybrid of Saccharum officinarum and a grass Aegilops squarrosa |
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Methylophilus methylotrophus is a source of:
| 1. | Bioinsecticide | 2. | Single cell protein |
| 3. | Thrombolytic | 4. | Clotting factors |
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Identify the incorrectly matched pair:
| Column I | Column II | |
| 1. | Sonalika and Kalyan Sona | Improved varieties of wheat |
| 2. | Jaya and Ratna | Improved varieties of maize |
| 3 | Saccharum Barberi | Poor sugar content and yield |
| 4. | Saccharum officinarum | High sugar content and thick stems |
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The most important species of honeybee reared in India is:
| 1. | Apis indica | 2. | Apis mellifera |
| 3. | Apis dorsata | 4. | Apis florea |
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