Question 8

(Multiple Choice)

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 model?


A) fA1) = 0.9700, fA2) = 0.0300
B) fA1) = 0.9997, fA2) = 0.0003
C) fA1) = 0.9604, fA2) = 0.0392
D) fA1) = 0.9800, fA2) = 0.0200
E) fA1) = 0.9600, fA2) = 0.0400

Answer