一年半前,苏格兰胚胎学家伊恩·威尔默特曾因克隆羊多利而震惊世界。如今一位年仅31岁的博士后成功地克隆出被普遍认为最难克隆的老鼠,使克隆这一惊世绝技成为普通的实验室程序。这一巨大成就已使多利成为了历史,把克隆技术向前推进了一大步;克隆人的实现可能要比人们预料的要早得多。 A year and a half ago, Scottish embryoologist Ian Wilmert had shocked the world by cloning sheep for profit. Now a 31-year-old postdoctoral scientist has successfully cloned the mice that are generally considered to be the most difficult to clone, making the cloning of this amazing skill a common laboratory procedure. This great achievement has made Dolly history and has taken cloning technology a big step forward; clones may have achieved much earlier than people expected.