NEET Biology Plant Growth and Development / पौधे की वृद्धि और विकास Question Bank Auxin

  • question_answer
    The primary precurser of IAA is [DPMT 1981; CPMT 1990]

    A) Phenyl alanine

    B) Tyrosine

    C) Tryptophan

    D) Leucine

    Correct Answer: C

    Solution :

    Natural auxins are synthesized in physiologically active parts of plants such as shoot apices, leaf primordia and developing seeds, bud, embryos from amino acid tryptophan.


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