Practice question
Question
UVR8 signaling activates transcription factor:
Explanation
Correct option is B, HY5. In PSS-Sec-E-Sensory biology problems like this, the accurate statement is HY5; the others are common mix-ups. Not these: A) PIF; C) MYC2; D) BZR1. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.