A researcher induces rapid desensitization of rhodopsin in retinal rod cells using a bright light flash, then introduces recoverin. Which consequence follows?

💡 Explanation

Recoverin, a calcium-binding protein, inhibits rhodopsin kinase when calcium levels are low, which prevents rhodopsin phosphorylation and desensitization. Because it blocks the kinase, the phototransduction cascade is rapidly restored, rather than remaining desensitized; therefore, option B is correct.

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