CRY2 promotes flowering by interacting with which transcription factor?
Correct option is B, CIB1. In cryptochrome problems like this, the accurate statement is CIB1; the others are common mix-ups. Not these: A) HY5; C) PIF; D) CO. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.