Cystic Fibrosis is an autosomal recessive disorder. Neither parent has the disease. Their first child (Joey) Has cystic fibrosis. What is the genotype of the both parents? Use the letter A for the alleles for cystic fibrosis.​

Explanation:

br.uh quit spamming this question

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!