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The case for a bubble at life’s start
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The case for a bubble at life’s start

Every cell is a bubble of chemistry enclosed by a membrane, and researchers think that kind of boundary may have helped life get started. In the lipid-first hypothesis, membrane-forming molecules gathered into bubbles that concentrated the ingredients needed for chemical reactions. Some bubbles could have passed on their molecular recipes as they grew and split, while changes in their chemistry could help faster-growing bubbles thrive. So: these tiny containers may have done more than hold the first ingredients of life - they may have helped chemical systems begin to evolve.
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