The production of rhodopsin by the combination of 11-cis-retinal and opsin in the dark. [rhodopsin + G. genesis, production]
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rho·do·gen·e·sis (ro″do-jenґə-sis) [rhodo- + -genesis] the restoration of the purple tint to rhodopsin after it has become bleached by the action of light.Medical dictionary. 2011.