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Practice question

Question

CTR1 acts as:

Options

Choose one · Correct answer highlighted

Explanation

That points to B: Negative regulator. Compared with the other options, Negative regulator is the one that correctly describes the Ethylene concept. The wrong ones are A) Positive regulator; C) Receptor; D) Ligand. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.