NEET Biology Plant Growth And Development Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Plant Growth And Development Topic Based

Question & Answer Discuss:

Hormone responsible for senescence is

(a) auxin

(b) ABA

(c) GA

(d) cytokinin

Answer: (b)

Abscisic acid is a growth inhibiting phytohormone. It induces senescence in leaves by promoting the degradation of chlorophyll and proteins.

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