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有例可证,动物克隆的尝试始于20世纪50年代,多莉则克隆成功于1996年。将其父源基因移植到一去核卵子得以实现,这一技术称作体细胞核移植。改细胞随之采用多种化学物质进行培育,最终得到了对其父源完全克隆的多莉。克隆就是通过无性繁殖,对原体的精确复制。举例来说,细胞就可以被完全复制。生成的细胞与原细胞一模一样,甚至基因链也相同。普通实验都是克隆特型细胞。当然,克隆羊多莉的成功表明有机体的克隆也是可行的。
There are examples of evidence that animal cloning attempts began in the 1950s and Dolly cloned successfully in 1996. Transplanting its paternal gene to an enucleated egg is called somatic cell nuclear transfer. Cell change followed by the use of a variety of chemical substances to cultivate, eventually got his father completely cloned Dolly. Cloning is through asexual reproduction, the precise copy of the original. For example, cells can be completely replicated. The resulting cells are identical to the original cells, and even the gene chain is the same. Common experiments are clonotypic cells. Of course, the success of the cloned sheep Dolly shows that the cloning of organisms is also feasible.