How is genetic fingerprinting and DNA is used in forensics technology.
Description: Genetic fingerprinting, DNA testing and DNA profiling is a technique to distinguish between individuals of the same species using only samples of their DNA. Its invention by Sir Alec Jeffreys at the University of Leicester was announced in 1985.
Two humans will have the vast majority of their DNA sequence in common. Genetic fingerprinting exploits highly variable repeating sequences called microsatellites. Two unrelated humans will be likely to have different numbers of microsatellites at a given locus. By using PCR to detect the number of repeats at several loci, it is possible to establish a match that is extremely unlikely to have arisen by coincidence.
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1. DNA Fingerprinting Process (RFLP Restriction Fragment Length Polymorphism) and how it is used in forensics technology.