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Q. No.Regarding part I of the diagram:
Statement I:
A is the Chalazal end.
Statement II:
B is the microspore mother cell, C is the microspore dyad and D is the microspore tetrad.
1.
Statement I is correct, Statement II is correct
2.
Statement I is incorrect, Statement II is correct
3.
Statement I is correct, Statement II is incorrect
4.
Statement I is incorrect, Statement II is incorrect
Subtopic: Pistil: Ovule |
From NCERT
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Regarding part II of the diagram:
| Statement I: | It shows the two, four, and eighth nucleate stages of the embryo sac. |
| Statement II: | The divisions are mitotic and free nuclear. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Pistil: Ovule |
92%
From NCERT
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Regarding part III of the diagram:
The correct statements are:
| Statement I: | It represents mature embryosac or the female gametophyte in an angiosperm. |
| Statement II: | A is the micropylar end and B is the Chalazal end |
| Statement III: | C guides the entry of the pollen tube into the embryo sac. |
| Statement IV: | D is the polar nuclei and E is the central cell. |
| Statement V: | F is the egg cell. |
| Statement VI: | G is the antipodals and H is special cellular thickenings. |
The correct statements are:
| 1. | Statement I, Statement IV, and Statement VI |
| 2. | Statement II, Statement III, Statement IV and Statement VI |
| 3. | Statement I, Statement IV, and Statement V |
| 4. | All Statements are correct |
Subtopic: Pistil: Ovule |
85%
From NCERT
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The diagram of NCERT given below shows two types of flowers in a certain plant:
| Statement I: | Cleistogamous flowers have an advantage and a disadvantage over chasmogamous flowers. |
| Statement II: | Seed set is assured even in the absence of pollinators but the amount of genetic variations is less in cleistogamous flowers when compared to the chasmogamous flowers. |
| 1. | Statement I is correct; Statement II is correct but Statement II does not explain Statement I. |
| 2. | Statement I is correct; Statement II is correct and Statement II explains Statement I. |
| 3. | Statement I is correct but Statement II is not correct. |
| 4. | Both Statement I and Statement II are not correct. |
Subtopic: Pollination & Outbreeding Devices |
83%
From NCERT
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The plant shown in the given diagram is most likely to be pollinated by:
| 1. | Water | 2. | Wind |
| 3. | Bees | 4. | Bats |
Subtopic: Pollination & Outbreeding Devices |
93%
From NCERT
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The diagram shows:
1. Pollination by water in Vallisneria
2. Pollination by water in Zostera
3. Pollination by wind in Water hyacinth
4. Pollination by the wind in Water lily
1. Pollination by water in Vallisneria
2. Pollination by water in Zostera
3. Pollination by wind in Water hyacinth
4. Pollination by the wind in Water lily
Subtopic: Pollination & Outbreeding Devices |
82%
From NCERT
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In the diagram identify A to D:
| A | B | C | D | |
| 1. | Synergid | Polar nuclei | Male gamete | Antipodal |
| 2. | Synergid | PEN | Male gamete | Antipodal |
| 3. | Antipodal | Polar nuclei | Egg cell | Synergid |
| 4. | Antipodal | PEN | Egg cell | Synergid |
Subtopic: Pollen - Pistil Interaction |
85%
From NCERT
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In the given diagram:
| Statement I: | I shows the entry of the pollen tube into a synergid under the guidance of A. |
| Statement II: | II shows the discharge of male gametes into a synergid. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Pollen - Pistil Interaction |
87%
From NCERT
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The diagram shows a fertilised embryo sac where:
| Statement I: | A is diploid and B is triploid |
| Statement II: | C are degenerating antipodal cells and D are degenerating synergids |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Double Fertilization |
86%
From NCERT
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The diagram shows stages in embryo development in a dicot where A, B, and C respectively are:
| 1. | Globular embryo, Heart shaped embryo, Immature Embryo |
| 2. | Globular embryo, Heart shaped embryo, Mature Embryo |
| 3. | Heart-shaped embryo, Globular embryo, Mature Embryo |
| 4. | Heart-shaped embryo, Globular embryo, Immature Embryo |
Subtopic: Double Fertilization |
93%
From NCERT
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