When it winds up its genome, divides into two cells and unwinds again, why does it not turn into an eye, into a liver, as it has all the genes necessary to do this?
当它把它的遗传物质卷起来， 分成两个细胞，再展开 为什么它不变成一只眼睛，一个肝脏 充分使用它所有的基因呢？