MCQ
Which one of the following pairs, is not correctly matched?
  • Gibberellic acid ­ Leaf fall
  • B
    Cytokinin ­ Cell division
  • C
    $IAA ­$ Cell wall elongation
  • D
    Abscissic acid ­ Stomatal closure

Answer

Correct option: A.
Gibberellic acid ­ Leaf fall
a
(a) : Gibberellic acid is a simple weakly acidic plant growth hormone which promotes cell elongation of both leaves and stems in general and internodal length of genetically dwarf plants in particular. It is in general a growth promoting hormone and does not inhibit growth. So leaf abscission is not associated with gibberellic acid but with abscisic acid.

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