There are no populations where dairying is present, but lactose tolerance frequencies are low.

Question

Quizplus · Accepted Answer

This statement is contradictory. The presence of dairying typically leads to higher lactose tolerance frequencies in populations due to natural selection favoring those who can digest lactose (a sugar found in milk) into adulthood. Therefore, if dairying is present, we would expect to see higher lactose tolerance frequencies in the population.

There Are No Populations Where Dairying Is Present, but Lactose