cystic fibrosis is a genetic disorder in humans where the person has two homozygous recessive alleles for the gene. if the disease is left untreated, it causes severe health problems in the individual. assuming hardy-weinberg equilibrium, if 198 in 10,000 newborn babies have the disease, 0.0198 would be homozygous recessive. given these numbers, the expected frequency of heterozygote carriers in the population would be