So if you zoom in on this genome, then what you see, of course, is this double-helix structure -- the code of life spelled out with these four biochemical letters, or we call them bases: A, C, G and T.
如果放大这条基因组 你看到的当然就是这个双螺旋结构 生命的密码就是由这些生化的字母组成 或者说碱基，对吧： A, C, G 和 T