Q. No.Transfer of pollens from the anther to the stigma of the same flower is called:
| 1. | Autogamy | 2. | Geitonogamy |
| 3. | Xenogamy | 4. | Cleistogamy |
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Choose the correct statement from the following:
| 1. | Cleistogamous flowers always exhibit autogamy |
| 2. | Chasmogamous flowers always exhibit geitonogamy |
| 3. | Cleistogamous flowers exhibit both autogamy and geitonogamy |
| 4. | Chasmogamous flowers never exhibit autogamy |
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Chasmocleistogamy [Amphicarpy] is not seen in:
| 1. | Viola [Common pansy] | 2. | Oxalis |
| 3. | Pisum sativum | 4. | Commelina |
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Geitonogamy is:
| 1. | Functionally cross–pollination but genetically autogamy |
| 2. | Functionally autogamy but genetically cross-pollination |
| 3. | Functionally and genetically autogamy |
| 4. | Functionally and genetically cross-pollination |
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The only type of pollination which during pollination brings a genetically different type of pollen grains to the stigma is:
| 1. | Chasmogamy | 2. | Cleistogamy |
| 3. | Geitonogamy | 4. | Xenogamy |
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| 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. |
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Majority of plants:
| 1. | Use abiotic agents for pollination |
| 2. | Use biotic agents for pollination |
| 3. | Do not use any agent for pollination |
| 4. | Use both abiotic and biotic agents for pollination. |
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Wind-pollinated flowers are characterized by the following, except:
| 1. | Light and non-sticky pollen grains |
| 2. | Well-exposed stamens |
| 3. | Many ovules in each ovary |
| 4. | Large, often-feathery stigma |
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| 1. | Water | 2. | Wind |
| 3. | Bees | 4. | Bats |
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Which of the following is/are a marine plant pollinated by water?
| 1. | Vallisneria | 2. | Hydrilla |
| 3. | Zostera | 4. | Both 1 and 2 |
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