Practice question
Question
Polycomb proteins regulate flowering by:
Explanation
The right choice is B: Repressing floral genes. In ABC MODEL, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Activating MADS-box genes; C) Degrading transcription factors; D) Transporting hormones. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.
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