Cone OpsinsOpsinsRod OpsinsRetinal Cone Photoreceptor CellsDrug Inverse AgonismRetinal Rod Photoreceptor CellsPhotoreceptor Cells, VertebrateTransducinGene DeletionRetinaldehydecis-trans-IsomerasesVision, OcularRetinal PigmentsRhodopsinRetinaGrowth ConesEye ProteinsSequence DeletionChromosome DeletionMicrospectrophotometryMolecular Sequence DataLight Signal TransductionPhotoreceptor CellsBase SequenceAmino Acid SequenceColor VisionCompound Eye, ArthropodPhylogenyDark AdaptationElectroretinographyLightHydrozoaPhotoreceptor Cells, Invertebrate