A) kinetin, synthetic auxin and natural auxin
B) natural auxin, gibberellin and kinetin
C) synthetic auxin, kinetin and natural auxin
D) gibberellin, natural auxin and kinetin
Correct Answer: A
Solution :
Kinetin is an adenine derivative, .i.e., 6-furfuryl amino purine. Kinetin is not a natural cytokinin. 2, 4 - dichlorophenoxy acetic acid is a synthetic auxin often used in plant cell culture technique. It is also a common pesticide/herbicide used in the control of broad leaf weeds. Indole-3-Acetic acid is a natural auxin which positively influence cell enlargement, bud formation and root initiation. Gibberellic acid or Gibberellin is plant hormone which promotes cell elongation. Its chemical formula is\[{{C}_{19}}{{H}_{22}}{{O}_{6}}\].
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