Question

“Triple response”, a key reaction of ethylene, is characterized by:

A Plumule hook opening, positive gravitropism and internodal elongation. Correct Answer Incorrect Answer
B Excessive cytokinesis, negative phototropism and parthenocarpy. Correct Answer Incorrect Answer
C Inhibition of stem elongation, promotion of lateral swelling of stems, and reduced sensitivity of stems to gravitropic stimulation. Correct Answer Incorrect Answer
D Fruit ripening, plumule hook opening and negative phototropism. Correct Answer Incorrect Answer

Solution

The correct answer is C

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