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Which one of the following pairs, is not correctly matched?

  1. A
    Abscisic acid - Stomatal closure
  2. B
    Gibberellic acid - Leaf fall
  3. C
    Cytokinin - Cell division
  4. D
    IAA - Cell wall elongation

Solution & Step-by-step Explanation

Gibberellic acid (GA) is primarily involved in internodal elongation, seed germination, and bolting. It does not cause leaf fall; instead, Abscisic acid (ABA) is the hormone typically associated with abscission (leaf fall) and senescence.

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Which one of the following pairs, is not correctly matched?
A
Abscisic acid - Stomatal closure
B
Gibberellic acid - Leaf fall
C
Cytokinin - Cell division
D
IAA - Cell wall elongation

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