“DNA technology” refers to a variety of procedures – some simple, others extremely complex and sophisticated. At the most basic level they include: isolating and purifying DNA; cutting DNA with specialized enzymes; characterizing, sequencing and expressing DNA; hybridizing, labeling, ligating, staining and quantifying DNA; and amplifying specific regions of DNA. This technology is used in fields such as: -diagnosis (infectious and hereditary diseases); - drug development; - epidemiology; - forensic science; - gene therapy; - genetically modified (GM) foods; - industrial enzymes etc.