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Q. No.Consider the given two statements:
Assertion (A):
Apomixis is a form of asexual reproduction that mimics sexual reproduction.
Reason (R):
Apomicts do not produce seeds.
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: Apomixis & Polyembryony |
72%
From NCERT
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In coconut:
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: | The fruit is a drupe. |
| II: | The white kerne is cellular endosperm. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Endosperm |
87%
From NCERT
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Water:
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: | is one of the two abiotic agents used for pollination by certain angiosperms. |
| II: | is used by majority of aquatic plants for pollination. |
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: Pollination & Outbreeding Devices |
61%
From NCERT
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Cryopreservation is a technique that involves storing biological material in liquid nitrogen at:
1. 0°C
2. - 4°C
3. -100°C
4. -196°C
1. 0°C
2. - 4°C
3. -100°C
4. -196°C
Subtopic: Stamen: Male Gametophyte |
97%
From NCERT
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A syncarpus gynoecium has:
1. a single pistil
2. no pistils
3. multiple free pistils
4. more than one fused pistils
1. a single pistil
2. no pistils
3. multiple free pistils
4. more than one fused pistils
Subtopic: Pistil: Ovule |
88%
From NCERT
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Gynoecium of Michelia is:
1. multicarpellary and apocarpous
2. multicarpellary and syncarpous
3. monocarpellary
4. sterile
1. multicarpellary and apocarpous
2. multicarpellary and syncarpous
3. monocarpellary
4. sterile
Subtopic: Pistil: Ovule |
81%
From NCERT
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A flower produces light and non-sticky pollens and has well exposed stamens. This flower is most likely pollinated by:
| 1. | Air | 2. | Water |
| 3. | Bees | 4. | Birds |
Subtopic: Pollination & Outbreeding Devices |
93%
From NCERT
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Regarding gynoecium in angiosperms:
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 basal bulged part of the pistil is the ovary. |
| II: | Inside the ovary is the ovarian cavity (locule). |
| III: | The placenta is located inside the ovarian cavity. |
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
Subtopic: Pistil: Female Gametophyte |
90%
From NCERT
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In plant-animal pollinator mutualistic relationships:
| I: | Plants need the help of animals for pollinating their flowers and dispersing their seeds. |
| II: | Plants offer rewards or fees in the form of pollen and nectar for pollinators and juicy and nutritious fruits for seed dispersers. |
| 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: Pollination & Outbreeding Devices |
93%
From NCERT
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The number of successive mitotic division(s) that the functional megaspore undergoes to produce the
embryo sac in angiosperms is:
embryo sac in angiosperms is:
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Pistil: Female Gametophyte |
79%
From NCERT
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