Which of the following is the most important factor that would lead to increased milk yield
in cattle?
1. Selection of good breeds
2. Selection of good breeds
3. Stringent cleanliness and hygiene
4. Provision of ideal environmental conditions for cattle

Subtopic:  Animal Husbandry (OLD NCERT) |
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Regarding out-breeding, the number of correct statements is:

I. Out-crossing is the practice of mating of animals within the same breed, but having no common ancestors on either side of their pedigree up to 4-6 generations.
II. Out-crossing is the best breeding method for animals that are below average in productivity in milk production, growth rate in beef cattle, etc.
III. A single outcross often helps to overcome inbreeding depression.
IV. In cross-breeding superior males of one breed are mated with superior females of another breed.
V. Cross-breeding allows the desirable qualities of two different breeds to be combined.
 
1. 2 2. 3
3. 4 4. 5
Subtopic:  Plant Breeding & Its Steps (OLD NCERT) | Breeding for Disease Resistance (OLD NCERT) |
 75%
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Amongst the following, the number of freshwater fishes are:
Catla, Rohu, Common carp, Hilsa, Sardines, Mackerel, Pomfrets.

1. 2 2. 3
3. 4 4. 5
Subtopic:  Animal Husbandry (OLD NCERT) |
 83%
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Consider the following two statements:

I: An effective germplasm collection is the prerequisite of any successful plant breeding programme.
II: Genetic variability is the root of any breeding programme.

1. Both I and II are true and II explains I.
2. Both I and II are true but II does not explain I.
3. I is true but II is false.
4. I is false but II is true.

Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
 78%
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Before releasing new cultivars in plant breeding programs, their testing includes all the following except:

1. growing these in the research fields and recording their performance under ideal fertiliser application, irrigation, and other crop management practices.
2. testing the materials in farmers’ fields, for one growing season at selected locations in the country
3. comparison to the best available local crop cultivar – a check or reference cultivar
4. taking care of all patent and legal issues

Subtopic:  Impact: Green Revolution (OLD NCERT) |
 59%
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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.
Subtopic:  Plant Breeding for Quality (OLD NCERT) |
 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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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.
Subtopic:  Animal Husbandry (OLD NCERT) |
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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
Subtopic:  Plant Breeding & Its Steps (OLD NCERT) |
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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:  Impact: Green Revolution (OLD NCERT) | Plant Tissue Culture |
 69%
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