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Plant Growth and Development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPlant Growth and Development1 Mark
MCQ
Which one of the following statement regarding auxin is/ are correct?
  • A
    IAA and NAA are natural but IBA, 2, 4, 5-T and 2, 4-D are synthetic auxins.
  • B
    NAA and 2, 4, 5-T are natural but IAA, IBA and 2, 4-D are synthetic auxins.
  • C
    IAA, NAA, IBA, 2, 4-D and 2, 4, 5-T are synthetic auxins.
  • D
    IAA and IBA are natural but NAA, 2, 4-D and 2, 4, 5-T are synthetic auxins.
✓

Answer

  1. IAA and IBA are natural but NAA, 2, 4-D and 2, 4, 5-T are synthetic auxins.

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