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AIIMS 2017
Exam
AIIMS
Year
2017
Subject
Botany
Chapter
Plant - Growth and Development

AIIMS 2017 · Botany · Plant - Growth and Development

Identify the incorrect statement about ABA growth regulator.

Identify the incorrect statement about ABA\mathrm{ABA} growth regulator.

Options

  1. AIt increases the tolerance of plants against different stresses.
  2. BIt acts as general plant growth inhibitor and inhibitor of metabolism.
  3. CIt helps in seed maturation and dormancy.
  4. DIt promotes morphogenesis and differentiation of shoots.

Correct answer

D. It promotes morphogenesis and differentiation of shoots.

Step-by-step solution

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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