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Q. No.The modification of the stem shown in the given figure is called a/an
1. Offset
2. Runner
3. Stolon
4. Cladode
1. Offset
2. Runner
3. Stolon
4. Cladode
Subtopic: Modifications of Stem |
80%
From NCERT
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Consider the two statements:
| Assertion (A): | Prop and stilt roots are aerial in origin yet they are called roots. |
| Reason (R): | These roots are modified to provide mechanical support |
| 1. | Both (A) and (R) are True but (R) does not correctly explain the (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True and (R) correctly explains the (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Modification of Roots |
From NCERT
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Consider the given two statements:
| Assertion (A): | Rhizophora, a mangrove plant, has pneumatophores that emerge above the water level. |
| Reason (R): | Pneumatophores help in gaseous exchange and support the plant in anaerobic soil conditions. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Modification of Roots |
86%
From NCERT
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China rose:
1. belongs to Brassicaceae
2. has parietal placentation
3. has monoadelphous stamen
4. has valvate aestivation
1. belongs to Brassicaceae
2. has parietal placentation
3. has monoadelphous stamen
4. has valvate aestivation
Subtopic: Flower & Parts of Flower |
84%
From NCERT
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Which of the following will not be true regarding mustard flower?
1. There are 4 petals arranged in a cross shape
2. Tetradynamous stamen
3. Inferior ovary
4. 4 sepals which are usually green
1. There are 4 petals arranged in a cross shape
2. Tetradynamous stamen
3. Inferior ovary
4. 4 sepals which are usually green
Subtopic: Flower & Parts of Flower |
90%
From NCERT
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Roots that arise from any point other than the radicle (embryonic root) are seen in:
| I: | Grass | II: | Monstera | III: | Banyan |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Morphology of Roots |
78%
From NCERT
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Consider the two statements:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | Pinnately compound leaves have all of their leaflets attached at the same point at the end of the petiole. |
| II: | Reticulate venation refers to the branching arrangement of veins in dicot leaves. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Venation, Types of Leaves & Phyllotaxy |
77%
From NCERT
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Consider the given two statements:
| Statement I: | Some plants of arid regions modify their stems into flattened or fleshy cylindrical structures for photosynthesis. |
| Statement II: | Underground stems of some plants such as grass and strawberry spread to new niches and form new plants when older parts die. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Modifications of Stem |
100%
From NCERT
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Consider the given statements:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The fruit generally consists of a wall or pericarp and seeds. |
| II: | The pericarp may be either dry or fleshy. |
| III: | When the pericarp is thick and fleshy, it is differentiated into the outer epicarp, the middle mesocarp, and the inner endocarp. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Fruits & their Types |
99%
From NCERT
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Consider the given two statements:
| Statement I: | In dicotyledonous plants, the primary root formed by the elongation of the radicle is called the tap root. |
| Statement II: | In monocotyledonous plants, the primary root is long-lived and develops into a tap root system. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Morphology of Roots |
98%
From NCERT
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