The+History+of+DNA

​ DNA (deoxyribonucleic acid) media type="custom" key="6584637"

Who Discovered DNA? In 1868 Friedrich Miescher discovered DNA. Who Discovered the Structure of DNA? In 1953 the structure of DNA was discovered by Francis Crick and James Watson. Who Discovered DNA Fingerprinting? On September 10, 1984, Alec Jeffreys created the technique of comparing and analysis of human DNA - aka DNA fingerprinting.

The 6 Step DNA Fingerprinting Procedure ** 1. Isolate the DNA by retrieving a small sample of tissue such as blood, hair, skin, etc. 2. Cutting the DNA sample by the use of restriciton enzymes and sorting the DNA pieces according to size. 3. Transfer the DNA to a nyloon sheet and letting it stay overnight. 4-5. Adding radioactive or colored probes to the nylon sheet to produce a colored pattern. 6. Using several more probes to finalize the DNA fingerprint and thus produces a "bar code" like print.
 * How Does DNA Fingerprinting Work?

The Purpose for DNA Fingerprinting: Not only are DNA fingerprints used for health purposes such as finding inherited deases but since everyone's DNA is different, their unique pattern can also help law enforcers solve crimes.