![]() ![]() Ancestrally, adult humans are lactose intolerant – losing their childhood ability to digest lactose – and endure severe intestinal distress should they consume fresh milk. A now classic example of a selective sweep in humans is the region around the lactase gene (LCT Bersaglieri et al., 2004 Tishkoff et al., 2006). While selective sweeps are thought to have been rare in human evolutionary history ( Hernandez et al., 2011), there are a few strong candidates in the human genome. Hernandez, in Encyclopedia of Evolutionary Biology, 2016 Examples of Selective Sweeps
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