Biologists Invoke the Past in Modern Bacteria By swapping ancient genes into modern E. coli, scientists hope to tease out the rules of evolution. Yaman OzakinBetul Kacar, a research fellow at Harvard University, has revived an ancient protein in E. coli. By: Emily SingerJune 18, 2015 One of the greatest challenges in evolutionary biology is trying to piece together the history of life based on fragmentary evidence and limited knowledge of the forces at play — the rich tapestry of climate, geology and living things that forms the backdrop for evolution. How, for example, did the light-sensitive molecules that enable...
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