MIT biologists solve vitamin puzzle

Solving a mystery that has puzzled scientists for decades, MIT and Harvard researchers have discovered the final piece of the synthesis pathway of vitamin B12-the only vitamin synthesized exclusively by microorganisms.

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<p><a href="http://www.physorg.com/news93707657.html">MIT biologists solve vitamin puzzle</a></p> <p>Solving a mystery that has puzzled scientists for decades, MIT and Harvard researchers have discovered the final piece of the synthesis pathway of vitamin B12-the only vitamin synthesized exclusively by microorganisms.</p>