Is cystic fibrosis due to chromosome damage?

Cystic fibrosis is not primarily caused by chromosome damage; rather, it is a genetic disorder resulting from mutations in the CFTR gene located on chromosome 7. These mutations lead to the production of a faulty cystic fibrosis transmembrane conductance regulator protein, which disrupts the regulation of salt and water movement across cell membranes. This results in the characteristic thick and sticky mucus associated with the disease. While chromosome abnormalities can lead to various genetic disorders, cystic fibrosis is specifically tied to a single gene mutation rather than broader chromosomal damage.