Brewing A Great Beer: DNA Study Reveals Evolution Of Beer Yeasts

Lager lovers convinced that their beer of choice stands alone should prepare to drink their words this Oktoberfest. New research by geneticists at the Stanford University School of Medicine indicates that the brew, which accounts for the majority of commercial beer production worldwide, owes its existence to an unlikely pairing between two species of yeast -- one of which has been used for thousands of years to make ale.

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