Which of the following is NOT true about pollination?

Pollen grains that fall on flowers of different species get destroyed

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Pollen grains that fall on flowers of different species produce new species of plants

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Leaves surrounding Mussaenda flowers change colour to attract pollinators

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Elephant yam produces a foul smell to attract flies for pollination

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Solution

The correct option is B
Pollen grains that fall on flowers of different species produce new species of plants

Pollen grains that fall on flowers of different species get destroyed and does not result in the formation of a viable seed. Artificial pollination can be performed between different varieties of plants of the same species to obtain seeds of higher quality.

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Similar questions

Q. Classify the given statements under the headings 'self pollination ' and 'cross pollination'.
a. Transfer of pollen grains from the anther to the stigma of the same flower.
b. Transfer of pollen grains from the anther to the stigma of a different flower.
c. No need of pollinators to transfer pollen grains.
d. Produces large amounts of pollen grains.
e. Requires pollinators to transfer pollen grains.

Which of the following statements is/are correct for hydrophily?

(i) Pollination by water is rare in flowering plants and is limited mostly to monocotyledons.

(ii) In majority of aquatic plants such as water hyacinth and water lily pollination takes place by insects and winds.

(iii) In most of the water pollinated species pollen grains are protected from getting wet by a mucilaginous covering.

(iv) In Vallisneria, female flowers reach the surface of water and receive the pollen grains, whereas in Zostera, female flowers remain submerged and receive pollen grains under water.

Q. This flower produces enormous trumpet - shaped flowers, which smell of rotting meat. Each flower lasts for two days. On the first day, it is in the female phase, attracting flies by its foul smell. On the next day, the flower changes to male phase and pollen is deposited on the pollinators. Which flower is this?

Pollen grains that fall on the stigma of other kinds of flowers get destroyed.

Q. Which of the following characteristics indicates that a flower is hydrophilous?
(i) It produces pollen grains in large numbers.
(ii) Some pollen grains have specific gravity that is very similar to that of water.
(iii) Some plants have male flowers floating on the water surface till they meet the female flowers.
(iv) Vallisneria is a water-pollinated flower.

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