Cryptochrome is primarily a photoreceptor for which wavelength range?
Answer: B) Blue light (400–500 nm). For cryptochrome, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Red/far-red light; C) Green light; D) Infrared light. Name the process first, then pick the option that describes it — don’t reverse cause and effect.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.