Genes and phenotypic adaptation work together to produce a biochemical difference between human groups in the ability to digest large amounts of milk.This is an adaptive advantage when
A) herding societies shift to a sedentary agricultural lifestyle.
B) mothers cannot wean their children from breast milk after they turn one year old.
C) other foods are scarce and milk is available, as it is in herding societies.
D) there is not enough lactose in the diet.
E) lactase, the enzyme that breaks down lactose, is not produced in enough quantities to keep up with dietary intake.

Question

Quizplus · Accepted Answer

The ability to digest large amounts of milk is an adaptive advantage in situations where other foods are scarce and milk is available, as is often the case in herding societies. This adaptation allows individuals to derive important nutrients from milk and use it as a primary dietary source.

Genes and Phenotypic Adaptation Work Together to Produce a Biochemical