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Q. No.Drupes:
1.
develop from monocarpellary superior ovaries and are one seeded
2.
develop from monocarpellary inferior ovaries and are one seeded.
3.
develop from multicarpellary superior ovaries and are many seeded.
4.
develop from multicarpellary inferior ovaries and are many seeded.
Subtopic: Fruits & their Types |
92%
From NCERT
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Study the Assertion statement followed by the Reason statement given below:
| Assertion (A): | A flower with staminode is best suited for pollinating the pistil in artificial hybridisation experiments in angiosperms. |
| Reason (R): | Flowers with staminodes are unisexual and produce a large number of pollens. |
| 1. | Both (A) and (R) are False. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Flower & Parts of Flower |
68%
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Identify the correct statements regarding a typical dicot seed:
1. Only I
2. Only II and III
3. Only III
4. I, II and III
| I. | The seed coat has two layers, the inner testa and the outer tegmen. |
| II. | The hilum is a scar on the seed coat through which the developing seeds were attached to the fruit. |
| III. | At the two ends of the embryonal axis are present the radicle and the plumule. |
1. Only I
2. Only II and III
3. Only III
4. I, II and III
Subtopic: Seed |
58%
From NCERT
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What are the features that distinguish a stem from a root?
1. Only I
2. Only II and III
3. Only I and III
4. Only I and II
| Stem | Root | |
| I: | Develops from plumule of germinating seed |
Develops from radicle of germinating seed |
| II: | Bears nodes and internodes |
Bears nodes but not internodes |
| III: | Does not bear buds | Bears buds, which may be terminal or axillary |
2. Only II and III
3. Only I and III
4. Only I and II
Subtopic: Morphology of Roots | Morphology of Stems |
65%
From NCERT
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Consider the two statements:
| Statement I: | When a flower has both androecium and gynoecium, it is dioecious. |
| Statement II: | Androecium and gynoecium are accessory organs of a flower. |
| 1. | Only Statement I is correct |
| 2. | Only Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Flower & Parts of Flower |
68%
From NCERT
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Identify the incorrect statement:
I: Carpels are free in lotus and rose.
II: Carpels are fused in mustard and tomato.
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I: Carpels are free in lotus and rose.
II: Carpels are fused in mustard and tomato.
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Flower & Parts of Flower |
63%
From NCERT
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Subtopic: Flower & Parts of Flower: I |
89%
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Study the Assertion statement followed by the Reason statement given below:
| Assertion (A): | In cymose type of inflorescence, the growth of the main axis is limited. |
| Reason (R): | In cymose type of inflorescence, the main axis terminates in a flower. |
| 1. | (A) is True but (R) is False. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Inflorescence |
91%
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
1. storage of food
2. absorbing water from the deeper layers of soil
3. nitrogen fixation
4. providing good anchorage to the plant
Subtopic: Morphology of Roots |
52%
From NCERT
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The type of aestivation seen in the given figure is:
I: called valvate.
II: seen in Cassia and gulmohur.
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: called valvate.
II: seen in Cassia and gulmohur.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Flower & Parts of Flower |
80%
From NCERT
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