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प्रश्न
Write two ways in which pollination may occur in plants.
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उत्तर
The two ways in which pollination may occur in plants are:
(a) Self-pollination.
(b) Cross-pollination
APPEARS IN
संबंधित प्रश्न
Why do moss plants produce very large number of male gametes? Provide one reason. What are these gametes called?
Mention two strategies that evolved to prevent self-pollination in flowers.
Complete the following chart and rewrite.
| Sr.No. | Agencies | type of pollination |
| 1 | Water | .................... |
| 2 | ........................... | Entomophily |
| 3 | Bat | .................... |
| 4 | ....................... | Ornithophily |
(Or)
Explain outbreeding devices in angiospermic plants.
Very short answer type question:
What is hydrophily?
Mention various adaptations for wind pollination.
Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Pollination in water lilies is carried out by ______.
When and why does a plant breeder employ the emasculation technique?
Identify the set of correct statements:
- The flowers of Vallisneria are colourful and produce nectar.
- The flowers of waterlily are not pollinated by water.
- In most of water-pollinated species, the pollen grains are protected from wetting.
- Pollen grains of some hydrophytes are long and ribbon like.
- In some hydrophytes, the pollen grains are carried passively inside water.
Choose the correct answer from the options given below:
