Which of the following is antagonist to Auxin in terms of promotion of stem growth______________?
Correct answer: C. Abscisic Acid
- A. Gibberellins
- B. Cytokinins
- C. Abscisic Acid
- D. none of these.
Explanation
Abscisic acid inhibits cell growth and promotes dormancy, whereas auxin promotes cell elongation and stem growth, so they act antagonistically in this context. Gibberellins also promote stem elongation, which may lead students to choose them, but they are not the intended antagonist of auxin here.
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