Q. No.The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which during pollination, brings genetically different types of pollen grains to stigma, is:
| 1. | Chasmogamy | 2. | Cleistogamy |
| 3. | Xenogamy | 4. | Geitonogamy |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn water hyacinth and water lily, pollination takes place by:
1. Water currents only
2. Wind and water
3. Insects and water
4. Insects or wind
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is incorrect for wind-pollinated plants?
1. Well exposed stamens and stigma
2. Many ovules in each ovary
3. Flowers are small and not brightly colored
4. Pollen grains are light and non-sticky
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat type of pollination takes place in Vallisneria?
| 1. | Pollination occurs in submerged conditions by water. |
| 2. | Flowers emerge above the surface of water and pollination occurs by insects. |
| 3. | Flowers emerge above the water surface and pollen is carried by the wind. |
| 4. | Male flowers are carried by water currents to female flowers at the surface of the water. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn which one of the following, both autogamy and geitonogamy are prevented?
1. Wheat
2. Papaya
3. Castor
4. Maize
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWinged pollen grains are present in:
1 Mustard
2. Cycas
3. Mango
4. Pinus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | Hydrilla | 2. | Yucca |
| 3. | Banana | 4. | Viola |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFlowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
1. Bee
2. Wind
3. Bat
4. Water
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA dioecious flowering plant prevents both:
1. Autogamy and geitonogamy
2. Geitonogamy and xenogamy
3. Cleistogamy and xenogamy
4. Autogamy and xenogamy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPollination in water hyacinth and water lily is brought about by the agency of
1. water
2. insects or wind
3. birds
4. bats
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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