然而,制造“半人半动物”的胚胎,看起来仍是极大的伦理挑战。为了规范这类实验,不少国家制定了相应的规范,但目前各国的规范各不相同。
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
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%C8%E7%BA%CE%93%F4%94%A1%CE%81%C5%A3%CF%B4%C5%C6%99%43%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF




