DECODING DNA FINGERPRINTING.WHAT IS DNA FINGERPRINTING DNA fingerprinting or DNA profiling, any of several similar techniques for analyzing and comparing DNA from separate sources, used especially in law enforcement to identify suspects from hair, blood, semen, or other biological materials found at ? It is the identification of an individual by the genetic markers, which are present on chromosomes. The DNA DNA: see nucleic acid. DNA or deoxyribonucleic acid One of two types of nucleic acid (the other is RNA); a complex organic compound found in all living cells and many viruses. It is the chemical substance of genes. profile of an individual is unique. It can never be identical even in biologically related individuals, except for identical twins identical twins pl.n. Twins derived from the same fertilized ovum that at an early stage of development becomes separated into independently growing cell aggregations, giving rise to two individuals of the same sex, identical genetic makeup, and . Forensic laboratories conduct short tandem repeat A short tandem repeat (STR) in DNA is a class of polymorphisms that occurs when a pattern of two or more nucleotides are repeated and the repeated sequences are directly adjacent to each other. analysis, wherein repeating sequences in the DNA are chosen. These sequences are present in all individuals on different chromosomes and vary from person to person WHAT IS ITS USE? DNA fingerprinting helps identify the source of biological samples found at crime scenes with virtually 100 per cent precision. This technology helps resolve disputes of maternity/ paternity The state or condition of a father; the relationship of a father. English and U.S. Common Law have recognized the importance of establishing the paternity of children. ; identification of mutilated mu·ti·late tr.v. mu·ti·lat·ed, mu·ti·lat·ing, mu·ti·lates 1. To deprive of a limb or an essential part; cripple. 2. To disfigure by damaging irreparably: mutilate a statue. remains, rape/ murder, missing child; exchange of babies in hospitals, forensic wildlife, protection of farmers rights WHAT SAMPLES ARE USED? Any biological material such as a drop of blood, saliva, semen, or any body part such as bones, tissue, skull, teeth, hair with root etc. found at the scene of crime can be used for the test. To identify the dead, any body part of the deceased found at the scene of the crime, along with the blood samples of blood relatives such as parents or children, is required. DNA fingerprinting is also used to identify rapists. For that, blood or semen- stained clothes of the victim and the accused can be used as samples Copyright 2009 India Today Group. All Rights Reserved. Provided by Syndigate.info an Albawaba.com company |
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