Having an African-American ancestry puts individuals at higher risk for developing which of the following genetic disorders?
A) sickle-cell trait and sickle-cell anemia
B) cystic fibrosis
C) Tay-Sachs disease
D) Down syndrome

Question

Quizplus · Accepted Answer

Sickle-cell trait occurs in about 1 of 12 U.S. African Americans; sickle-cell anemia occurs in about 1 of 500. Other groups whose ancestors lived in low-lying malarial wetlands show high rates as well.

Having an African-American Ancestry Puts Individuals at Higher Risk for Developing