NEET BIOLOGY

Detailed explanation-1: -Simply put, cystic fibrosis is a gene defect. A defect to this gene changes how a salt moves in and out of cells, resulting in thick, sticky mucus in the respiratory, digestive and reproductive systems. It’s an inherited condition.

Detailed explanation-2: -Cystic fibrosis (CF) is a genetic (inherited) disease that causes sticky, thick mucus to build up in organs, including your lungs and pancreas.

Detailed explanation-3: -CF causes thick mucus to build up and clog certain parts of the body such as the lung. The buildup is caused by an abnormal gene called CFTR (cystic fibrosis transmembrane regulator). CFTR controls the flow of water and salt in and out of the body’s cells. Changes cause mucus to become thickened and sticky.

Detailed explanation-4: -Cystic fibrosis is an inherited condition that causes sticky mucus to build up in the lungs and digestive system. This causes lung infections and problems with digesting food.

Detailed explanation-5: -Cystic fibrosis is an example of a recessive disease. That means a person must have a mutation in both copies of the CFTR gene to have CF. If someone has a mutation in only one copy of the CFTR gene and the other copy is normal, he or she does not have CF and is a CF carrier.