Article
A worldwide correlation of lactase persistence phenotype and genotypes.
BMC evolutionary biology - 9 Feb 2010
Itan Yuval, Jones Bryony L, Ingram Catherine J E, Swallow Dallas M, Thomas Mark G
Abstract excerpt
BACKGROUND: The ability of adult humans to digest the milk sugar lactose - lactase persistence - is a dominant Mendelian trait that has been a subject of extensive genetic, medical and evolutionary research. Lactase persistence is common in people of European ancestry as well as some African, Middle Eastern and Southern Asian groups, but is rare or absent elsewhere in the world. The recent identification of...
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