NEET Questions Solved

AIIMS - 2017

Identify the incorrect statement about ABA growth regulator.

(a) It increases the tolerance of plants against different stresses.

(b) It acts as general plant growth inhibitor and inhibitor of metabolism.

(c) It helps in seed maturation and dormancy.

(d) It promotes morphogenesis and differentiation of shoots.

Audio Explanation:


(d) Abscisic acid (ABA) is a growth inhibitor. Both auxins and cytokinins are essential for morphogenesis or differentiation of tissues and organs. Auxins stimulate root formation however,when cytokinins are in excess stem buds develop.

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