Article
Lactase haplotype diversity in the Old World.
American journal of human genetics - 1 Jan 2001
Hollox E J, Poulter M, Zvarik M, Ferak V, Krause A, Jenkins T, Saha N, Kozlov A I, Swallow D M
Abstract excerpt
Lactase persistence, the genetic trait in which intestinal lactase activity persists at childhood levels into adulthood, varies in frequency in different human populations, being most frequent in northern Europeans and certain African and Arabian nomadic tribes, who have a history of drinking fresh milk. Selection is likely to have played an important role in establishing these different frequencies since the...
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