this is about the genetic disease cystic fibrosis CF is an inherited disease caused by an abnormal protein that does not allow the normal passage of chloride (which, along with sodium, makes up salt) into and out of certain cells, including those that line the lungs and pancreas. the protein is a Chloride channel found on many tissues of body especialy gut and respiratory tract the abnormal channel makes the secretions thick wich get stuck and can cause problems esp. infections.the gene responsible is called CFTR gene. | 