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500-Million-Year-Old Gene May Show if Evolution Can Repeat Itself

Biologists have long wondered whether life would evolve the same way again if we could rewind Earth’s tape. Eric Gaucher and Betül Arslan at Georgia Tech University in Atlanta synthesised an ancient gene —EF-Tu, a gene in Escherichia coli, that plays a crucial role in protein synthesis— and inserted it into E. coli in place of the modern version. Gaucher had previously worked out what this gene’s DNA sequence must have been 500 million years ago.

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I posted this from the New Scientist a few days ago, but it looks like it’s been picked up by…

Way to get famous, Betul!

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