The incidence of cystic fibrosis, a recessive genetic disorder in the caucasian population of united states, is 1 in every 2,500 individuals. find the number of heterozygous carriers.
(p + q = 1, p2 + 2pq + q2 = 1)

a: 0.0392
b: 0.0254
c: 0.045

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

"a.) well–developed vascular system."