DNA Fingerprinting

A DNA fingerprinting method to identify a specific person, and not only identify the species or a particular characteristic. It is also known as genetic fingerprinting or DNA profiles known. As a leader in technology and at least 1985, when announced, was a creator, Sir Alec Jeffreys of the year. DNA fingerprinting is now used to determine paternity or maternity and to identify perpetrators and victims. The discussion was, with the help of DNA fingerprinting as a form of personal identification, even if profitability is controversial.

Most DNA was whether the person is directly another man, and therefore distinguish between two quite difficult. DNA fingerprinting using a particular sequence of DNA known as microsatellites, to facilitate the identification. Microsatellites are short stretches of DNA that is repeated several times in the DNA of a particular person. In some areas, usually microsatellites, highly variable, which make them suitable for DNA fingerprinting. Comparison of a series of microsatellites in a given area, we can identify a person whose derogations.

DNA fragments used in DNA fingerprinting, although very different, transmitted from parents to their children. While not all parties will be approved automatically, without any child pairs than their parents. This means that you can compare large groups of these sections, father, motherhood, or both, to determine. DNA fingerprinting is a high success rate and very low false positives, which is a very popular form of paternity and maternity review.

In forensics, DNA fingerprinting is very interesting because they are not actual fingerprints, which can not be left and can not or will not cover it. Because each DNA deighleog found in every cell, every part of the human body lock of hair follicles in the skin used to be a drop of blood to detect using DNA fingerprinting.This is useful for criminal detection, as even a drop of blood or skin enough to leave the scene to determine guilt or innocence, and is almost impossible to remove all traces of physical presence. A DNA fingerprinting in cases to identify victims, as can be destroyed, even when the body disfigured teeth or identify past identification and other features to be useful for all you need individual cells, for "positive identification.

DNA fingerprinting is not perfect, but. It can reach doubt that a cell of a particular person, it could likely only. In many cases, the probability is very high - one in ten billion, for example - but could in some cases be much lower. There are also likely problem when a passage that can put it directly, a number of areas examined in a number of parent DNA. Despite these problems, DNA fingerprinting and more frequently in the life of criminal forensic science. Although similar to some legal issues there, the probative value of DNA fingerprinting and the amount contributed to them by national laws on the DNA databases for individuals and to collect DNA samples for comparison with benefits for more than the current problems.