Pollen grains from which of the following plants have a higher probability of having a mucilaginous covering?

Water hyacinth

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Sunflower

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Sweet pea

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Hydrilla

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Solution

The correct option is D Hydrilla
Hydrilla is a water pollinated plant. So, the pollen grains of Hydrilla have a mucilaginous covering to prevent them from becoming wet and rotting.

Water hyacinth, sunflower and sweet pea are pollinated by insects. Hence, their pollen grains do not require a heavy mucilaginous coating and instead they have a yellow sticky substance called pollenkit.

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Similar questions

Q. Pollen grains from which of the following plants have a higher probability of having a mucilaginous covering?

Q. "Pollen grains are protected by a mucilaginous covering and having a specific gravity". This is characteristic of which type of pollination.

Which of the following statements 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 wind

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

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Q. A pollen grain from tetraploid plant fuses with a diploid plant, resulting seed will have

Regarding assertion and reason, select the right option.

Assertion (A): Pollen grains have a tough outer covering.
Reason (R): Pollen grains differs in size, shape, colour and design.

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