1. Cystic fibrosis (CF), a life-threatening lung disease, is caused from the inheritance of a recessive allele from both parents for the CFTR gene. In order for this disease to manifest itself, one needs to be homozygous recessive for this autosomal gene. According to the World Health Organization (WHO), the frequency of CF in the human population is approximately 1 in 2000. (**keep 4 significant figures during calculations)

Question

1.	Cystic fibrosis (CF), a life-threatening lung disease, is caused from the inheritance of a recessive allele from both parents for the CFTR gene.  In order for this disease to manifest itself, one needs to be homozygous recessive for this autosomal gene.  According to the World Health Organization (WHO), the frequency of CF in the human population is approximately 1 in 2000.  (**keep 4 significant figures during calculations)
Using the Hardy-Weinberg equilibrium equation, what frequency of the population consists of heterozygous carriers of the CF allele? (1 pt)

What is the allelic frequency the recessive allele? (1 pt)

If a human population abides by Hardy-Weinberg equilibriums, out of a sample size of 2000, how many are likely to be carriers (round your answer to a whole number) SHOW ALL YOUR WORK using the H-W equation. (3 pts)