Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. if 9 in 10,000 newborn babies have the disease, what are the expected frequencies of the dominant (a1) and recessive (a2) alleles according to the hardy-weinberg equation? cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. if 9 in 10,000 newborn babies have the disease, what are the expected frequencies of the dominant (a1) and recessive (a2) alleles according to the hardy-weinberg equation? f(a1) = 0.9800, f(a2) = 0.0200 f(a1) = 0.9604, f(a2) = 0.0392 f(a1) = 0.9997, f(a2) = 0.0003 f(a1) = 0.9700, f(a2) = 0.0300