NEET 2008 Biology question
Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in
Answer: (3)
Solution
Leaf abscission is an example of programmed (active) senescence in which the leaf cells undergo controlled degeneration, nutrients are withdrawn and an abscission layer is formed. Hence option (3). Vessel and tracheid differentiation also involves programmed cell
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