DNA Fingerprinting
Introduction
Background: DNA fingerprinting is one of the great discoveries of the late 20th century,that has revolutionized forensic investigations. (Roewer 2013) The complete DNA of each individual is unique, with the exception of identical twins. It is this difference that can be used by forensic scientists to match specimens of blood , tissue, or hair follicles to an individual with a high level of certainty. A DNA fingerprint, therefore, is a DNA pattern that has a unique sequence such that it can be distinguished from the DNA patterns of other individuals. DNA fingerprinting is also called DNA typing. DNA fingerprinting was first used for sample identification after the geneticist Alec J. Jeffreys from the University …show more content…
(Beldean Andreea n.d.)
Although DNA fingerprinting is very accurate, it also is very sensitive and can be contaminated easily. The sample of DNA testing can quickly be impaired during the process, and also the test needs to be kept on multiple samples. On the other hand , One key disadvantage of DNA analysis is the potential for invasion of individual privacy; Because a person's DNA reveals so much information about their physical state, it is sensitive information that must be carefully guarded; Information about an individual's ethnic background and parentage could become cause for discrimination; So Disadvantages include incomplete coverage, which can lead to false normal results, and the ability to test only for unbalanced rearrangements (duplications and deletions), and not balanced translocations or inversions. (Beldean Andreea …show more content…
(Professor Jeffreys, Research Professor, University of Leicester)
References
1- Thomson Gale, DNA-fingerprinting, encyclopedia [INTERNET ],[ on 2005], Available from: http://www.encyclopedia.com/topic/DNA_fingerprinting.aspx 2- DNA Fingerprinting , Mega Essays [INTERNET ] , Available from: http://www.megaessays.com/viewpaper/84126.html 3- The Editors of Encyclopedia Britannica,DNA-fingerprinting, Britannica [INTERNET ],[ on 12 dec, 2014], Available from: http://www.britannica.com/science/DNA-fingerprinting 4- The Columbia Electronic Encyclopedia, DNA-fingerprinting, info please[INTERNET ],[ on 2012], Available from: http://www.infoplease.com/encyclopedia/science/dna-fingerprinting-methods.html 5- Advantage and disadvantage of DNA-fingerprinting, allaboutdnafingerprinting,[INTERNET ], Available from: http://allaboutdnafingerprinting.weebly.com/advantages-and-disadvantages.html 6- Lutz Roewer, DNA fingerprinting in forensics: past, present, future,ncbi [INTERNET ],[ on 18 Nov, 2013], Available from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3831584/ 7- Beldean Andreea, Ilies Ioana,Lazurca Bianca,Man Andreea,Purcel Sanda, ADVANTAGES AND DISADVANTAGES OF DNA TESTING, Power point [INTERNET ],[ on 15 April,
Introduction
Background: DNA fingerprinting is one of the great discoveries of the late 20th century,that has revolutionized forensic investigations. (Roewer 2013) The complete DNA of each individual is unique, with the exception of identical twins. It is this difference that can be used by forensic scientists to match specimens of blood , tissue, or hair follicles to an individual with a high level of certainty. A DNA fingerprint, therefore, is a DNA pattern that has a unique sequence such that it can be distinguished from the DNA patterns of other individuals. DNA fingerprinting is also called DNA typing. DNA fingerprinting was first used for sample identification after the geneticist Alec J. Jeffreys from the University …show more content…
(Beldean Andreea n.d.)
Although DNA fingerprinting is very accurate, it also is very sensitive and can be contaminated easily. The sample of DNA testing can quickly be impaired during the process, and also the test needs to be kept on multiple samples. On the other hand , One key disadvantage of DNA analysis is the potential for invasion of individual privacy; Because a person's DNA reveals so much information about their physical state, it is sensitive information that must be carefully guarded; Information about an individual's ethnic background and parentage could become cause for discrimination; So Disadvantages include incomplete coverage, which can lead to false normal results, and the ability to test only for unbalanced rearrangements (duplications and deletions), and not balanced translocations or inversions. (Beldean Andreea …show more content…
(Professor Jeffreys, Research Professor, University of Leicester)
References
1- Thomson Gale, DNA-fingerprinting, encyclopedia [INTERNET ],[ on 2005], Available from: http://www.encyclopedia.com/topic/DNA_fingerprinting.aspx 2- DNA Fingerprinting , Mega Essays [INTERNET ] , Available from: http://www.megaessays.com/viewpaper/84126.html 3- The Editors of Encyclopedia Britannica,DNA-fingerprinting, Britannica [INTERNET ],[ on 12 dec, 2014], Available from: http://www.britannica.com/science/DNA-fingerprinting 4- The Columbia Electronic Encyclopedia, DNA-fingerprinting, info please[INTERNET ],[ on 2012], Available from: http://www.infoplease.com/encyclopedia/science/dna-fingerprinting-methods.html 5- Advantage and disadvantage of DNA-fingerprinting, allaboutdnafingerprinting,[INTERNET ], Available from: http://allaboutdnafingerprinting.weebly.com/advantages-and-disadvantages.html 6- Lutz Roewer, DNA fingerprinting in forensics: past, present, future,ncbi [INTERNET ],[ on 18 Nov, 2013], Available from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3831584/ 7- Beldean Andreea, Ilies Ioana,Lazurca Bianca,Man Andreea,Purcel Sanda, ADVANTAGES AND DISADVANTAGES OF DNA TESTING, Power point [INTERNET ],[ on 15 April,