Genetic_Fingerprinting

Genetic Fingerprinting Genetic finger printing is the greatest advance in science since finger printing itself. Genetic fingerprinting was first developed as an identification technique in 1985. It was originally used to detect genetic diseases but it was soon used in criminal investigations. DNA is extracted from the sample of blood, hair roots, semen or saliva. Enzymes that break the DNA apart are put in and the broken segments are arranged by size on a sheet covered with gel, the process is called electrophoresis. The segments are marked with probes and placed on X-ray film. When the film develops they form a pattern of black bars—the DNA fingerprint. Genetic finger printing is mostly used for solving crimes. Tiny blood samples, hair roots, semen or saliva from the scene are converted into barcodes and then compared with the suspect’s barcode. Genetic finger printing has made it a lot easier to identify criminals and to make sure that is the right printing, finger, genetic, people, parent, barcode, semen, segments, saliva, roots, insurance, identify, hair, film, dna, diseases, disease, blood, x-ray, wether, tiny, technique, suspect’s, sure, stress, started, soon, solving, size, since, sheet, science, scene, samples, sample, right, related, put, process, probes, predicted, placed, person, pattern, parent’s, other’s, originally, one, must, much