Cystic Fibrosis is a hereditary disorder affecting the exocrine glands, leading to production of thick, sticky mucus causing blockages in ducts of pancreas and lungs, resulting in respiratory and digestive problems. Cystic Fibrosis PCR is a molecular diagnostic technique used to detect mutations in the CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) gene associated with cystic fibrosis, aiding specific diagnosis.