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Q.

Pollen grain loses its viability within half an hour of its release in

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a

Cereals such as wheat and rice

b

Both Solanaceae and Leguminosae

c

Members of family Leguminosae

d

Members of family Solanaceae

answer is A.

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Detailed Solution

In some cereals such as rice and wheat, pollen grains lose viability within 30 minutes of their release, and in some members of Rosaceae, Leguminoseae and Solanaceae, they maintain viability for months.

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Pollen grain loses its viability within half an hour of its release in