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Q. No.If a plant researcher wants to grow a healthy turnip plant from an infected turnip plant (mosaic disease), he/she should focus on:
1.
Making the turnip plant hairy
2.
Growing the apical meristem from turnip plant in in-vitro condition
3.
Cross hybridizing the turnip plant with healthy one in in-vitro condition
4.
Making the turnip plant smooth leaved
Subtopic: Plant Tissue Culture |
84%
From NCERT
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All of the below given are aphid resistant plant varieties, except:
1. Pusa Sem 2
2. Pusa Gaurav
3. Pusa Sem 3
4. Pusa Sawani
1. Pusa Sem 2
2. Pusa Gaurav
3. Pusa Sem 3
4. Pusa Sawani
Subtopic: Insect & Pest Resistance (OLD NCERT) |
75%
From NCERT
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Both mung bean and okra have been made resistant against yellow mosaic virus. In mung bean and okra resistance was introduced by:
| 1. | Mutation breeding |
| 2. | Conventional Breeding |
| 3. | Mutation and conventional breeding respectively |
| 4. | Conventional breeding and mutation breeding respectively |
Subtopic: Breeding for Disease Resistance (OLD NCERT) |
67%
From NCERT
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Hairy or smooth leaf surface in plants provides resistance against all of the following insects, except:
1. Jassid
2. Leaf beetle
3. Bollworm
4. Fruit borer
1. Jassid
2. Leaf beetle
3. Bollworm
4. Fruit borer
Subtopic: Insect & Pest Resistance (OLD NCERT) |
59%
From NCERT
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Spirulina can
Choose the correct ones:
1. a and b only
2. a and c only
3. c only
4. All a, b and c
| a. | Be easily grown on starch rich materials |
| b. | Serve as food rich in proteins, fats, carbohydrates and vitamins |
| c. | Be used to generate SCP and eventually reducing environmental pollution |
Choose the correct ones:
1. a and b only
2. a and c only
3. c only
4. All a, b and c
Subtopic: Single Cell Protein (OLD NCERT) |
89%
From NCERT
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Single cell protein is obtained from:
(a) Single celled organism
(b) Eukaryotes
(c) Autotrophic organisms
(d) Heterotrophic organisms
(e) Prokaryotes
(f) Multicellular organisms
Choose the correct ones:
1. a, b and e only
2. b, c, d and e only
3. a, b, d and c only
4. All a, b, c, d, e and f
(a) Single celled organism
(b) Eukaryotes
(c) Autotrophic organisms
(d) Heterotrophic organisms
(e) Prokaryotes
(f) Multicellular organisms
Choose the correct ones:
1. a, b and e only
2. b, c, d and e only
3. a, b, d and c only
4. All a, b, c, d, e and f
Subtopic: Single Cell Protein (OLD NCERT) |
75%
From NCERT
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Somatic hybrids:
| 1. | Always have desired combination of characteristics |
| 2. | Are prepared by fusing two somatic cells of the same plant |
| 3. | Are always superior than their parents |
| 4. | Are prepare by fusing two different protoplasts |
Subtopic: Plant Tissue Culture |
66%
From NCERT
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Parbhani Kranti, a variety of bhindi (lady finger) is resistant to:
1. bacterial blight
2. yellow mosaic virus
3. black rot
4. leaf curl
1. bacterial blight
2. yellow mosaic virus
3. black rot
4. leaf curl
Subtopic: Breeding for Disease Resistance (OLD NCERT) |
81%
From NCERT
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Which one is used in tissue culture?
1. Explant
2. Somaclones
3. Hybridisation
4. None of these
1. Explant
2. Somaclones
3. Hybridisation
4. None of these
Subtopic: Plant Tissue Culture |
72%
From NCERT
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Select the incorrect match w.r.t. single cell protein organism.
| 1. | Candida | – | Fungus |
| 2. | Fusarium | – | Bacteria |
| 3. | Mushroom | – | Fungi |
| 4. | Spirulina | – | Blue green alga |
Subtopic: Single Cell Protein (OLD NCERT) |
60%
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