Cystic fibrosis (CF) is a commonly lethal hereditary syndrome that affects the lung and digestive tract and is triggered by mutations of cystic fibrosis transmembrane conductance regulator (CFTR) gene, situated on chromosome 7 (Hart and Harrison, 2017; Marangi and Pistritto, 2018). The gene discussed is CFTR; the disease is cystic fibrosis.