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Q. No.Parthenium hysterophorus:
1. I, II, III and IV are correct
2. Only I, II, and III are correct
3. Only I, III and IV are correct
4. Only II, III and IV are correct
| I: | is also called carrot grass. |
| II: | came to India as a contaminant with imported rice. |
| III: | has become invasive in India. |
| IV: | causes pollen allergy. |
1. I, II, III and IV are correct
2. Only I, II, and III are correct
3. Only I, III and IV are correct
4. Only II, III and IV are correct
Subtopic: Stamen: Male Gametophyte |
69%
From NCERT
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The layers in the walls of the microsporangium that helps in the dehiscence of anther to release the pollen include:
| I: | Epidermis |
| II: | Endothecium |
| III: | Middle layers |
| IV: | Tapetum |
| 1. | I and II only | 2. | I, II, and III only |
| 3. | II and III only | 4. | I, II, III, and IV |
Subtopic: Stamen: Microsporangium |
83%
From NCERT
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
The germ pore in the pollen wall:
| 1. | is an aperture in the pollen intine that allows the pollen tube to exit. |
| 2. | is the name of the nucleus of the microspore mother cell. |
| 3. | is formed where sporopollenin is located in the exine. |
| 4. | is an aperture in the pollen exine that allows the pollen tube to exit. |
Subtopic: Stamen: Microsporangium | Stamen: Male Gametophyte |
82%
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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Match each item in Column-I with one in Column-II and select the correct match from the codes given:
Codes:
| Column-I | Column-II | ||
| A. | Vallisneria | P. | Pollinated by insects |
| B. | Zostera | Q. | Water pollinated plant found in fresh water |
| C. | Water lily | R. | Water pollinated plant found in marine water |
| A | B | C | |
| 1. | P | Q | R |
| 2. | P | R | Q |
| 3. | Q | R | P |
| 4. | Q | P | R |
Subtopic: Pollination & Outbreeding Devices |
88%
From NCERT
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In an angiosperm
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: | Microspore mother cell is diploid and megaspore mother cell is haploid. |
| II: | Microsporogenesis involves meiosis and megasporogenesis involves mitosis. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Stamen: Microsporangium |
83%
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Consider the given two statements:
| Assertion (A): | Development of apomictic embryos is considered significant in the context of hybrid seed production. |
| Reason (R): | If hybrids are made into apomicts, there is no segregation of characters in otherwise expensive to produce hybrid progeny. |
| 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. | (A) is False, (R) is True |
Subtopic: Apomixis & Polyembryony |
89%
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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Consider the given two statements:
| Assertion (A): | The flowers produce enormous amount of pollen when compared to the number of ovules available for pollination. |
| Reason (R): | Pollens are products of meiosis resulting in larger number of cells but egg is the product of mitosis resulting in fewer number of cells. |
| 1. | Both (A) and (R) are True and (R) explains (A) |
| 2. | Both (A) and (R) are True and (R) does not explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Pollination & Outbreeding Devices | Post Pollination Events |
72%
From NCERT
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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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