Railways R.R.C. (Allahabad) Solved Paper Held on 17-11-2013

  • question_answer
    Which of the following is a plant hormone?

    A) Insulin              

    B) Thyroxine

    C) Auxin               

    D) Oestrogen

    Correct Answer: C

    Solution :

    Auxin is a plant hormone, say plant growth regulator is plants, e.g., Indole Acetic Acid (IAA), 2, 4-D; NAA (Nephthline Acetic Acid), which are originated by Charlse Darvin (1880).


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