Expression of human rhodopsin-GFP in various mice. (A) Eye sections of +/hrhoG mice at 9, 11, 13, 15, and 18 days after birth, showing expression of human rhodopsin-GFP during early development of rod cells. (B) Eye sections of +/hrhoG rd/rd mice at 9, 11, 13, 15, and 18 days, showing rapid retinal degeneration. (C) Confocal image of retinal wholemount from a mouse chimeric for cells of the genotype +/hrhoG(P). (D) Confocal image of retinal wholemount from a mouse chimeric for cells of the genotype +/hrhoG(H). (E) Individual rod cell expressing human rhodopsin-GFP in a retinal wholemount from a mouse chimeric for cells of the genotype +/hrhoG(H).