The given figure, with reference to the anatomy of plants, represents:
| 1. | Tracheid | 2. | Xylem fibre |
| 3. | Xylem parenchyma | 4. | Vessel |
Subtopic: Complex Tissue: Xylem |
60%
Level 2: 60%+
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Match List-I with List-II.
Choose the correct answer from the options given below:
1. A-I, B-IV, C-II, D-III
2. A-II, B-I, C-III, D-IV
3. A-II, B-III, C-I, D-IV
4. A-I, B-II, C-IV, D-III
| List-I | List-II | ||
| A. | Polyadelphous | I. | Filaments of stamens united into more than two bundles |
| B. | Syncarpous | II. | Sterile stamen |
| C. | Staminode | III. | Stamens are attached to the petals |
| D. | Epipetalous | IV. | Carpels are fused |
1. A-I, B-IV, C-II, D-III
2. A-II, B-I, C-III, D-IV
3. A-II, B-III, C-I, D-IV
4. A-I, B-II, C-IV, D-III
Subtopic: Flower & Parts of Flower |
91%
Level 1: 80%+
NEET - 2024
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Synthesis of ATP linked to development of a proton gradient across a membrane is:
| 1. | Mass flow hypothesis | 2. | Wobble hypothesis |
| 3. | Chemiosmotic hypothesis | 4. | Rivet Popper hypothesis |
Subtopic: Chemiosmotic hypothesis |
96%
Level 1: 80%+
NEET - 2024
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Important objective of biotechnology in agriculture is to:
1. produce pest resistant varieties of plant.
2. increase nitrogen content in plant.
3. decrease the seed number.
4. increase the plant weight.
1. produce pest resistant varieties of plant.
2. increase nitrogen content in plant.
3. decrease the seed number.
4. increase the plant weight.
Subtopic: Intro to Agri Applications |
96%
Level 1: 80%+
NEET - 2024
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The phenomenon where a single gene exhibits multiple phenotypic expressions is called:
1. Co-dominance
2. Pleiotropy
3. Multiple alleles
4. Polygenic inheritance
1. Co-dominance
2. Pleiotropy
3. Multiple alleles
4. Polygenic inheritance
Subtopic: Polygenic Inheritance & Pleiotropy |
80%
Level 1: 80%+
NEET - 2024
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Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
| Statement I: | In collenchyma, cell walls are thickened at corners due to deposition of cellulose, hemicellulose and pectin. |
| Statement II: | Sclerenchyma consists of lignified cell walls and possesses pits. |
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
Subtopic: Simple Tissue: Chollenchyma & Sclerenchyma |
89%
Level 1: 80%+
NEET - 2024
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Bt toxin protein that can kill many insects, doesn't kill the Bacillus because:
| 1. | Bt toxin requires acidic pH for activation |
| 2. | Bacillus has protective mechanism against it |
| 3. | In Bacillus, it is present in an inactive state and once insects ingests it, it is converted to active form |
| 4. | The protoxin requires protein conjugate for its activation |
Subtopic: Bt Crops |
90%
Level 1: 80%+
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Subtopic: Factors Affecting Enzyme Catalysis Reaction |
71%
Level 2: 60%+
NEET - 2024
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Highest annual Net Primary Productivity is observed in:
1. Tropical deciduous forest
2. Temperate evergreen forest
3. Temperate deciduous forest
4. Tropical rain forest
1. Tropical deciduous forest
2. Temperate evergreen forest
3. Temperate deciduous forest
4. Tropical rain forest
Subtopic: Biodiversity Patterns |
88%
Level 1: 80%+
NEET - 2024
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In the lac operon, the i gene codes for:
1. Inducer
2. Repressor
3. \(\beta\)-galactosidase
4. Permease
1. Inducer
2. Repressor
3. \(\beta\)-galactosidase
4. Permease
Subtopic: Gene Regulation: Lac Operon |
64%
Level 2: 60%+
NEET - 2024
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