当嵌合体胚胎遇到灵长类动物时,问题则变得更复杂——由于亲缘关系更近,人猴胚胎的嵌合更有可能成功;但也由于亲缘关系更近,灵长类动物可能具有更高级的智慧和情绪,涉及它们的实验伦理总是要顾及更多。
现在,人猴嵌合体胚胎真的出现了。之前,伦理要求或许只为嵌合体胚胎划了一条模糊的边线;如今,被研究推动
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