Epinasty is controlled by_____________?
Correct answer: C. Auxins
- A. Gibberellins
- B. Abscisins
- C. Auxins
- D. Cytokinins
Explanation
Epinasty, such as downward bending of a leaf, commonly results from unequal auxin distribution that causes greater growth on one side of the organ. Students may choose abscisic acid because it is associated with stress responses and stomatal closure, but auxin is the hormone classically linked with differential growth and epinasty.
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