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Question

Ethylene triple response includes all except:

Options

Choose one · Correct answer highlighted

Explanation

Go with D — Increased elongation. Under Phytohormone ALL, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Reduced elongation; B) Radial swelling; C) Tight apical hook. When two options sound similar, choose the one that matches the textbook definition most tightly.