Science class experiment reveals vitamin B12 secret

For decades, scientists have wondered how living organisms manufacture the essential vitamin B12. Now, using laundry whitener and dirt-dwelling bacteria--the everyday ingredients of an undergraduate science experiment--researchers may have found the major clue they need to solve the mystery.

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<p><a href="http://www.physorg.com/news11091.html">Science class experiment reveals vitamin B12 secret</a></p> <p>For decades, scientists have wondered how living organisms manufacture the essential vitamin B12. Now, using laundry whitener and dirt-dwelling bacteria--the everyday ingredients of an undergraduate science experiment--researchers may have found the major clue they need to solve the mystery.</p>