ANTH 2 Lecture Notes - Lecture 24: Lactose Intolerance, Sickle-Cell Disease, Lactase
6 Aug 2020
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Lactose=sugar carbohydrate in cow milk: not all milk has lactose (eg. goat milk) Broken down in gut by enzyme lactase. Lactase production: controlled by a single regulatory gene, which turns off lactase production at weaning, about 3 yrs old in humans. Lactose intolerance: % of american whites who are genetically lactose intolerant= 18, % african-americans= 75, % chinese= 97, thai and vietnamese= 100, % swedes= 2% Pastoralists people who keep livestock, they were the more recent ancestors of. Masai people (originally from north africa, now in west africa: their lives revolve around cattle. They use every product of the cow, especially the milk. They have a weird technique where they mix up the milk and blood of a cow. They think that they own all of the cattle in the world, so they take cows whenever they find them. They are classic pastoralists who live by drinking the milk of their cattle.
