Which of the Following Statements About Lactase Persistence in Humans

Multiple Choice

Which of the following statements about lactase persistence in humans are true? Please select all that apply.

A) Most people do not exhibit lactase persistence
B) Lactase persistence is due to mutations in the lactase gene
C) The mutation rate in the lactase gene is higher in herding populations than in non-herding populations
D) Lactase persistence is a derived condition
E) Lactase persistence is an example of positive selection