We need a satisfactory metaphor for DNA

日期:2019-03-01 12:16:01 作者:家扑迢 阅读:

By Stephen Strauss EVER since James Watson and Francis Crick first described the structure of DNA in the 1950s, people have been trying to come up with a metaphor that properly captures what this complex molecule does. There have been no shortage of contenders, from “double helix” (which describes its shape rather than function) to “blueprint”, “chemical building block”, “alphabet of life”, “book of life”,