MCQ
Which hormone was first isolated from human urine?
  • Auxin
  • B
    $ABA$
  • C
    Ethylene
  • D
    Gibberellic acid

Answer

Correct option: A.
Auxin
a
Auxin (derived from Greek work auxin, which means to grow) was first isolated from human urine. Kogl and Heagen Smith ($1931$) isolated three chemicals from human urine and named them as auxin

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