In one type of squirrel monkey, the males lack a visual pigment called L-opsin.
在一种松鼠猴中，雄松鼠猴缺少一种叫做L视蛋白视觉色素。
He discovered that each species has completely lost at least one of the seven opsin genes, and some have even lost two.
他发现每个物种至少已经丧失了七视蛋白基因的一种，有的甚至失去了两种。
So the scientists got to wondering: what would happen if they gave a boy squirrel monkey the same opsin that girls have.
因此科学家们就考虑：如果给雄性猴子们注入这种雌性猴子拥有的视觉色素会发生什么呢？
The colour blindness in the monkeys arises because full colour vision requires two versions of the opsin gene, which is carried on the X chromosome.
色盲在猴群中上升是因为全色觉需要两种不同的视蛋白基因，它们存在于X染色体上。
There is no agreement on the relationships of the neuralian opsin subfamilies, and clarifying their phylogeny is key to elucidating the origin of this protein family and of vision.
视觉的遗传起源仍然不清楚，这部分是由于对最早拥有视蛋白的后生动物之间的系统发生学关系的报告的不一致。
Vitamin A is to create visual cells in order to feel weak light of the composition of rhodopsin, rhodopsin from opsin and 11 - cis - retinal composition, with the dark vision related.
维生素A是构成视觉细胞中感受弱光的视紫红质的组成成分，视紫红质是由视蛋白和11-顺-视黄醛组成，与暗视觉有关。
Vitamin A is to create visual cells in order to feel weak light of the composition of rhodopsin, rhodopsin from opsin and 11 - cis - retinal composition, with the dark vision related.
维生素A是构成视觉细胞中感受弱光的视紫红质的组成成分，视紫红质是由视蛋白和11-顺-视黄醛组成，与暗视觉有关。
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