I asked myself, are there really stem cells in there?
我不禁问自己，这里面真的有干细胞吗？
2
If there was a way of extracting the stem cells without destroying them, I would not be opposed to it.
如果有一条可以不毁灭胚胎而提取干细胞的途径，我就不会反对。
3
What Dr Yamanaka discovered in his work on mice was a group of transcription factors that switched on the pattern of gene expression which says, “I am an embryonic stem cell.”