
Life uses 4 DNA letters. Scientists just made 8 work
<a href="https://news.google.com/rss/articles/CBMib0FVX3lxTE9qX2Fod09uX2JYVXhHam1mcE1lcng5bkxkSC1YaS1NM1JXRmNXc3d0cC1uX1poSGxMd19pUW00aGVHSEdDbTU1R3EzN0gwWHRfeHZlNjBWcmxDdWZ6RVhOMnpvOU1yOXFEZ1MwZmxMaw?oc=5" target="_blank">Life uses 4 DNA letters. Scientists just made 8 work</a>&nbsp;&nbsp;<font color="#6f6f6f">Science Daily</font>

