One of the biggest questions in stem cell biology is how the cloning process manages to turn back the clock of mature cells, resetting them to their embryonic potential.

• 生物谷报道：干细胞生物学研究中最大的一个问题就是克隆过程如何能让成熟细胞恢复年幼，使它们回到胚胎细胞状态。