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Practice question

Question

Which chromophores are bound by plant cryptochromes?

Options

Choose one · Correct answer highlighted

Explanation

Go with B — Flavin and pterin. Under cryptochrome, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Chlorophyll and carotene; C) Biliverdin and phytochromobilin; D) Retinal and opsin. When two options sound similar, choose the one that matches the textbook definition most tightly.