聚合酶链反应（PCR）这项技术到底带了多大的影响，为什么说其是既简单又伟大的呢？
这是biorad公司为了推出新产品而编写的一首PCR之歌。 英文歌词： There was a time when to amplify DNA, You had to grow tons and tons of tiny cells. Then along came a guy named Dr. Kary Mullis, Said you can amplify in vitro just as well. Just mix your template with a buffer and some primers, Nucleotides and polymerases, too. Denaturing, annealing, and extending. Well it’s amazing what heating and cooling and heating will do. PCR, when you need to detect mutations. PCR, when you need to recombine. PCR, when you need to find out who the daddy is. PCR, when you need to solve a crime 中文歌词： 从前你要扩增DNA， 总有培养大批细胞的重任要你背。 这时有个家伙叫Kary Mullis博士， 他钻出来说体外合成也一样OK！ 只要把你的模板混上缓冲液，再加些引物， 还有核苷和聚合酶。 变性，退火，和延伸。 加热~冷却~加热~太神奇了！ 当你想要检测突变，来啊做PCR吧！ 当你想要基因重组，来啊做PCR吧！ 当你想知道孩子他爹到底是谁，来啊做PCR吧！ 当你想要侦破大案，来啊做PCR吧！