Practice question
Question
The Pfr form of phytochrome absorbs maximally at approximately:
Explanation
Pick D: 730 nm. Thinking through PHYTOCHROME step by step rules out the lookalikes and leaves 730 nm. Skip these: A) 450 nm; B) 550 nm; C) 660 nm. For hormones and genes, match the molecule or gene to its real role, not a neighboring pathway.
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