Question

In plants, the chemical control is brought about by

• A. Auxins
• B. Gibberalins
• C. Cytokinin
• D. All of the above

Answer 1

Answer: (D)

All of the above

• Phytohormones are plant hormones.
• These are organic substances that are produced in plants.
• The coordination in various physical processes in plants is possible because of the major role played by the plant hormones, be it auxin, gibberellin, cytokinin, abscisic acid, and ethylene.

So, the correct answer is option D.