DNA profiling

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    According to Kitaeff (2011), some things that play a role in scientific model of criminal profiling include the following: • Signature - Does the suspect do something each time that reveals something about them. For example if they leave a bible, or place a blanket over the victim. • Modus Operandi - Pattern to the crime such as the victim always…

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    The National Institute of Justice’s article “Extending Time to Collect DNA in Sexual Assault Cases” explains the use and shortcomings of DNA profiling in identifying a suspect in a sexual assault case. DNA profiles require the use of short sequences that repeat a number of times, called short tandem repeats (STRs). With the current DNA profiling method, many jurisdictions protocols require to collect the samples within three days of the sexual assault. However, a viable analysis is still…

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    wonder if DNA is the most effect way to catching a criminal (Steen). Without the use of it there would not be the freeing or those accused of a crime and proving of their innocence. In today’s society the use of deoxyribonucleic acid, known as DNA; is the basic building block of life and has aided in identifying criminals and solving major crimes (Houck and Siegel). But on the other hand DNA has also proven many individuals to be innocent of a crime. The information that inside of one’s DNA set…

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    According to the article “DNA Technology and Crime” “In 1992 lawyers Barry Scheck and Peter Neufeld created the Innocence Project, a legal organization aimed at overturning wrongful conviction through DNA profiling. Since then, more than two hundred criminal convictions have been overturned in the United States alone.” The Innocence Project is needed to help turn over wrongful convictions that were made. The article “DNA Technology and Crime” stated in their article “ DNA was first studied in…

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    Biological Evidence DNA can be transferred to evidence directly or indirectly. This exchange of information between objects is based on the Locard Exchange Principle. The Locard Exchange Principle states that information is exchanged whenever two items come into contact with each other (Houck and Siegel 54). The direct transfer of DNA can be described as DNA that is “transferred from a source to a location with no intermediaries” (Houck and Siegel 55). The indirect transfer of DNA “involves one…

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    Forensic DNA is the process of using and collecting DNA from crime scenes to solve criminal investigations and to ensure accuracy and fairness in the Criminal Justice System. DNA profiling has grown significantly in the past years and has been extremely useful in identifying suspects, criminals and other people involved in the crime. If the suspect is unidentifiable, DNA evidence is compared to a DNA database to identify the criminal. DNA testing has both advantages and disadvantages many of…

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    1. A. Recombinant DNA Technology Recombinant DNA is DNA that has been artificially created. It involves taking one piece of DNA and combining it with another piece of DNA. By combining two or more strands of DNA, scientists form a new strand of DNA. Gene Transfer using Plasmids • In order to transfer one strand of DNA from one species to another, a host cell is needed. E. coli is often used as a host cell for gene transfer because it not only has circular DNA, but also a smaller…

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    Genetics Testing Introduction to Genetic Testing Genetic testing, also known as DNA testing, is the process of using medical tests used to look at one’s genes, inherited from one’s parents. These tests ranges from identifying a child’s biological parents, to ascertaining if there are any risks of having cancer or diseases. Results of genetic testing may help access on how severe a disease might be and find the best solution to diagnose it. It will also help determine the chances of developing…

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    DNA analysis, also known as DNA profiling, testing, typing, is a process that takes genetic material and evaluates it so that it can identify individuals in a criminal investigation or in use of a forensic application. The beginning step of the performance of DNA analysis on a reference sample or person is the collection of DNA from cells. These cells can come from a blood sample or even swabbing the inside of an individual’s cheek. After it is collected, the samples are then sent to a lab for…

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    DNA fingerprinting, also known as DNA profiling, is identifying an individual using there DNA. This is often used for identifying criminals, and parental testing. First, a sample must be provided, which can be: blood, semen, hair roots, or saliva. The cells from the sample are then split open, and DNA is separated from the rest of the cell. The DNA is then treated with specialized proteins (restriction enzymes),which separate the DNA into smaller parts. The fragments of DNA are then applied to a…

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