提出这一实验的研究员中内啓光反驳了人们的担忧,称他的实验关注的是特定器官的创造,而不是新物种的培养。
"We are trying to do targeted organ generation, so the cells go only to the pancreas," he said, according to Nature.
据《自然》杂志报道,他说:“我们正在尝试培育特定的器官,这样细胞就只能到达胰腺。”
He added that in his previous experiments, the number of human cells inside of a sheep embryo has been extremely small.
他补充说,在他之前的实验中,绵羊胚胎中的人类细胞数量非常少。
"The number of human cells grown in the bodies of sheep is extremely small, like one in thousands or one in tens of thousands," he said, according to Asahi.
据《朝日资讯》报道,他说:“绵羊体内生长的人体细胞数量非常少,只有数千分之一或数万分之一。”
"At that level, an animal with a human face will never be born," Nakauchi said.
他说:“在这个水平上,是不会生出长着人脸的动物的。”
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