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Q.

Pollen grains retain viability for months in plants belonging to different families, such as 

 i. Solanaceae
ii. Leguminosae
iii. Gramineae
iv. Rosaceae
v. Liliaceae

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a

i, ii and v

b

i, iii and v

c

ii, iv and v

d

i, ii and iv

answer is B.

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Detailed Solution

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In some members of Rosaceae, Leguminosae and Solanaceae, pollen grains retain viability for months.

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