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A 3.45-billion-year-old diet

Researchers are providing new information about the 'diet' of microorganisms on the early Earth. By studying 3.45-billion-year-old rocks, the team uncovered clues about ancient microbial metabolism.

dateNov 21, 2012 in Earth Sciences
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Transcription runs like clockwork

(—It's not just a few key genes and proteins that cycle on and off in humans in a 24-hour circadian pattern as the sun rises and falls. Thousands of genes in organs throughout the body show predictable daily fluctuations, ...

dateSep 03, 2012 in Cell & Microbiology
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