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Post-UTME Biology 2018 Objective — Question 8

Question 8 of 20 from the Post-UTME Screening (Post-UTME) Biology 2018 Objective paper, with the correct answer and a full explanation.

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Which of the following chemicals is a plant growth substance?

  • A. Oxaloacetic acid
  • B. Pyruvic acid
  • C. Indoleacetic acidCorrect
  • D. Oxalosuccinic acid

Explanation

Indoleacetic acid (IAA) is a naturally occurring auxin, a plant growth hormone.

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