Dna Term Project
DNA Testing
DNA testing is a method of identification that compares fragments of Deoxyribonucleic Acid (DNA). DNA is the genetic material found within the cell nuclei of all living things. The complete DNA of each individual is unique except in identical twins. DNA was first used in 1985 as an identification technique. It was first used to detect the presence of genetic diseases. Soon after, it was used in criminal investigations. The first criminal convictions based on DNA evidence in the U.S. occurred in 1988.
The reliability of DNA testing has increased over the years due to better techniques. It is still not one hundred percent accurate, however. There are a few factors that can contribute to inaccuracies. Reliability can be questionable if DNA segments rather than complete DNA strands are fingerprinted. Human error in interpreting tests could lead to false results. There is also the possibility of criminals planting fake DNA samples at crime scenes.
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