Compared to Other Populations, Tay Sachs Disease Is Relatively Common

Multiple Choice

Compared to other populations, Tay Sachs disease is relatively common in the French Canadian and Jewish populations. Which of the following statements are true about two different populations that have an elevated incidence of the same genetic disease?
Please select all that apply.

A) The increased likelihood of a disease in two different populations suggests that the disease variant in the two populations may be derived from a common ancestor
B) Genetic drift has increased the disease likelihood in the two populations compared to other populations
C) It can be concluded that a common variant is responsible for the disease in the two populations
D) The two populations are actually one population