And so you can go in and have a billion different viruses that are all genetically identical, but they differ from each other based on their tips, on one sequence that codes for one protein.
这样就能得到十亿个不同的病毒 它们具有相同的遗传基因， 但它们可以基于它们的标签相互区分， 为一个蛋白质 编码的序列。