Lactose tolerance is determined by a [[recessive]] [[gene]]. Researchers have recently identified a [[DNA]] [[mutation]] that allows people to tolerate milk.<ref>http://www.foodnavigator.com/news/news-ng.asp?id=42796-scientists-identify-lactose</ref> Lactose tolerance is often called lactose persistence. | Lactose tolerance is determined by a [[recessive]] [[gene]]. Researchers have recently identified a [[DNA]] [[mutation]] that allows people to tolerate milk.<ref>http://www.foodnavigator.com/news/news-ng.asp?id=42796-scientists-identify-lactose</ref> Lactose tolerance is often called lactose persistence. |