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

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 13. Plant growth and development1 Mark
MCQ
Difference between kinetin and zeatin is
  • A
    Kinetin is active zeatin, is non-active
  • B
    Zeatin is active kinetin, is non-active
  • C
    Zeatin is synthetic, kinetin is natural
  • ✓
    Zeatin is natural, kinetin is synthetic
✓

Answer

Correct option: D.
Zeatin is natural, kinetin is synthetic
d
The first cytokinin was discovered as kinetin (A modified form of adenine). Kinetin does not occur naturally in plants. Search for natural substances with cytokinin like activity led to the isolation of zeatin from corn-kernels and coconut milk

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