alexa Forensic DNA analysis.
General Science

General Science

Journal of Forensic Research

Author(s): McDonald J, Lehman DC, McDonald J, Lehman DC

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Abstract Before the routine use of DNA profiling, blood typing was an important forensic tool. However, blood typing was not very discriminating. For example, roughly 30\% of the United States population has type A-positive blood. Therefore, if A-positive blood were found at a crime scene, it could have come from 30\% of the population. DNA profiling has a much better ability for discrimination. Forensic laboratories no longer routinely determine blood type. If blood is found at a crime scene, DNA profiling is performed. From Jeffrey's discovery of DNA fingerprinting to the development of PCR of STRs to the formation of DNA databases, our knowledge of DNA and DNA profiling have expanded greatly. Also, the applications for which we use DNA profiling have increased. DNA profiling is not just used for criminal case work, but it has expanded to encompass paternity testing, disaster victim identification, monitoring bone marrow transplants, detecting fetal cells in a mother's blood, tracing human history, and a multitude of other areas. The future of DNA profiling looks expansive with the development of newer instrumentation and techniques.
This article was published in Clin Lab Sci and referenced in Journal of Forensic Research

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