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Question

Senescence as an active development cellular process in the growth and functioning of a flowering plant, is indicated in

A
Annual plants
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B
Floral parts
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C
Vessels and tracheid differentiation
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D
Leaf abscission
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Solution

The correct option is D Leaf abscission
When the plants undergo ageing and develop into a mature plant and later the part of the developmental process ultimately leads to death is called as senescence. In many perennial plants, the older leaves and lateral organs like branches show senescence and die.
Thus, the correct answer is option D.

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