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STD 11 - 13. Plant growth and development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
One of the synthetic auxin is
  • A
    $IA$
  • B
    $NAA$
  • C
    $IBA$
  • D
    Both $(b) $ and $(c)$
✓

Answer

d(d) : Many auxins have been synthesized which have similar properties with natural auxin and some examples of synthetic auxins are indole­-$3$-­butyric acid $(IBA)$, naphthalene acetic acid $(NAA)$, $2,4$-­dichloro­ phenoxy acetic acid $(2,4-­D), 2,4,5-$ trichloro­ phenoxyacetic acid $(2,4,5-­T)$.

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