Why Did the Lactose Tolerance Mutation in the East African

question 67

Multiple Choice

Why did the lactose tolerance mutation in the East African herders spread so rapidly within the population?

• A) Milk provided calcium for strong bones.
• B) It was a selective advantage for survival during droughts and cold winters.
• C) Lactose was a better source of energy than glucose.
• D) Milk was a good source of protein during the summer harvests.

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