How Does Gene-Culture Co-Evolution Explain Lactase Persistence in Some Adult

question 7

Multiple Choice

How does gene-culture co-evolution explain lactase persistence in some adult populations in the world?

• A) It was an advantage to be lactose tolerant to consume cheese.
• B) Milk which was drunk in times of famine caused a mutation in the lactase gene.
• C) Adults who were able to consume milk survived better in famines and so had a selective advantage.
• D) Over time some populations developed bacteria in the gut that consume lactose.