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Q. No.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: Â Modification of Roots |
From NCERT
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Consider the given two statements:
| Assertion(A): | In cymose type of inflorescence, the main axis is limited in growth. |
| Reason (R): | In cymose type of inflorescence, the flowers are borne in a basipetal order. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Â Inflorescence |
 52%
From NCERT
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Which of the following refer to individual components of a floral whorl?
i. Androecium
ii. Carpel
iii. Corolla
iv. Sepal
1. i and iv
2. iii and iv
3. ii and iv
4. i and ii
i. Androecium
ii. Carpel
iii. Corolla
iv. Sepal
1. i and iv
2. iii and iv
3. ii and iv
4. i and ii
Subtopic: Â Flower & Parts of Flower |
 50%
From NCERT
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The lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil, and then come out obliquely upward giving rise to leafy shoots in
1. Pistia and Eichhornia
2. Pineapple and Chrysanthemum
3. Mint and Jasmine
4. Opuntia and Euphorbia
1. Pistia and Eichhornia
2. Pineapple and Chrysanthemum
3. Mint and Jasmine
4. Opuntia and Euphorbia
Subtopic: Â Modifications of Stem |
 60%
From NCERT
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Study the given diagram and select the correct statements:
1. Statement I is correct; Statement II is correct
2. Statement Iis correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | A is micropyle through which the pollen tube had entered into the embryo sac. |
| Statement II: | B is hilum through which the developing seeds were attached to the fruit. |
1. Statement I is correct; Statement II is correct
2. Statement Iis correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Â Seed |
From NCERT
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Although a root system performs many functions, a fibrous root system may especially be excellent for:
| 1. | storage of food |
| 2. | absorbing water from the deeper layers of soil |
| 3. | nitrogen fixation |
| 4. | providing good anchorage to the plant |
Subtopic: Â Morphology of Roots |
 52%
From NCERT
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Given below are two statements:
| Assertion (A): | Leaves showing parallel venation are found in monocotyledonous plants |
| Reason (R): | In leaves showing parallel venation, the veins run parallel to one another, veinlets are inconspicuous and reticulations are absent |
| 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: Â Morphology of Leaf |
 55%
From NCERT
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The number of correct statements from the given statements is:
| I: | In a typical dicotyledonous embryo, the portion of the embryonal axis above the level of cotyledons is the epicotyl, which terminates with the plumule or stem tip. |
| II: | In a typical dicotyledonous embryo, the cylindrical portion below the level of cotyledons is hypocotyl, and it terminates at its lower end in the radicle or root tip. |
| III: | In the grass family, the cotyledon is called the scutellum, which is situated towards one side (lateral) of the embryonal axis. |
| IV: | At its lower end, the embryonal axis in monocots has the radical and root cap enclosed in an undifferentiated sheath called coleorhiza. |
| V: | In monocots, the portion of the embryonal axis above the level of attachment of the scutellum is the epicotyl. |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
Subtopic: Â Seed |
 57%
From NCERT
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Key differences between monocot and dicot seeds include all of the following except:
| 1. | Monocots have one cotyledon, while dicots have two |
| 2. | Monocot seeds usually contain endosperm, whereas dicot seeds do not |
| 3. | The seed coat is fused with the fruit in monocots but not in dicots |
| 4. | Monocots have scattered vascular bundles, while dicots have them in a ring |
Subtopic: Â Seed |
From NCERT
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Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soybean, Tobacco and groundnut how many plants have corolla with valvate aestivation?
| 1. | Six | 2. | Seven |
| 3. | Eight | 4. | Five |
Subtopic: Â Flower & Parts of Flower |
From NCERT
NEET - 2013
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