【导语】 1997年克隆羊多莉的诞生,就已为克隆人做好了技术上的准备。也使关于克隆人的争论变得更加现实。
Human cloning is the creation of a genetically identical copy of an existing or previously existing human.Despite several highly public claims,human cloning still appears to be a fiction.There is no solid scientific evidence that anyone has cloned human embryos at present.