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Question

Degradation of PIFs occurs mainly in the presence of:

Options

Choose one · Correct answer highlighted

Explanation

Correct option is B, Red light. In PSS-Sec-E-Sensory biology problems like this, the accurate statement is Red light; the others are common mix-ups. Not these: A) Darkness; C) Blue light; D) Far-red light. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.