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First glimpse at the viral birth of DNA

作者:巩锋恻    发布时间:2019-03-04 03:14:00    

By Bob Holmes in Atlanta EARLY life underwent a massive system upgrade around 4 billion years ago. DNA’s simple code can encrypt a huge amount of information and its trademark double helix makes it remarkably stable. But most biologists agree that life began with a soup of RNA, a less stable genetic molecule. So at some point the vast majority of life must have switched its code. For the first time, biologists have had a glimpse at how this may have happened. The rare insight points to archaic viruses as the inventors of DNA. Better yet,

 

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