The genetic material of a cell from a cystic fibrosis patient, for example, can be transferred into an unfertilised egg cell with its own genetic material removed. 例如,来自囊性纤维化患者的细胞遗传物质可以移植到一个移除了自身遗传物质的未受精卵细胞中。
The process that led to Dolly began with the transfer of the nucleus of an adult cell to an unfertilised egg taken from a donor animal by a process known as cell fusion. 多利诞生的过程是这样开始的:通过一个叫细胞合成的过程,把一个成体细胞核移植到一个取自供体动物的未受精的卵子上。