If the frequency of the -thalassemia major disease is 1/1600, what is the probability that a person in the general population (asymptomatic and no family history) is heterozygous for a mutant...

If the frequency of the -thalassemia major disease is 1/1600, what is the probability that a person in the general population (asymptomatic and no family history) is heterozygous for a mutant -thalassemia allele?

A. 1/1600

B. 1/800

C. 1/40

D. 1/20

E. 2/3