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Genetic screening detects particular genes or chromosome mutations (e.g. cystic fibrosis, …)

Stage 1 - DNA extraction

Stage 2 - Restriction enzymes

Stage 3 - Electrophoresis

Stage 4 - Southern Blotting and DNA probes

Stage 5 - Autoradiography

Using enzymes to diagnose pancreatitis

Using enzymes in biosensors