Practice question
Question
LOV domains bind which chromophore?
Explanation
Go with B — FMN. Under Phototropin+All, 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) FAD; C) Chlorophyll; D) Retinal. When two options sound similar, choose the one that matches the textbook definition most tightly.