点击图片查看原图
按照美国国立卫生研究院（NIH）的规定，有关人-灵长类动物嵌合体胚胎的实验无法得到他们的资金支持；2015 年，他们又宣布暂停资助人-非灵长类动物嵌合体胚胎的研究。
日本则相反，他们在 2019 年放开了管制。原本，含有人细胞的动物胚胎不能培养超过 14 天。但随着新规出台，在科学合理且必要的条件下，嵌合体胚胎不仅可以在 14 天后继续培育，而且允许被移植到代孕动
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%C4%A7%CA%F5%B9%A4%BE%DF%A1%BF%BF%C9%D2%D4%CC%E1%C7%B0%D6%AA%B5%C0%BD%59%B9%FB%B2%A2%B8%C4%D7%83%BD%59%B9%FB%BC%74%C9%AB%B0%FC%EE%5E%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
