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Science Issues Analysis : DNA fingerprinting

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DNA Fingerprinting

Film Summary

DNA profiling can match individuals to a crime scene using only a few cells. A brief history of DNA profiling and the breakthroughs that have made this possible.

Key Facts

  • DNA is described as a 'blueprint' of an organism and is unique to all but identical twins.
  • Since the 1960s, the development of DNA fingerprinting has enabled forensic scientists to identify suspects.
  • In 1987, fragment length polymorphism was first used to successfully identify and convict a criminal.
  • By 1997, the development of polymerase chain reaction meant that tiny samples of hair, blood and saliva could be used to recreate a criminal's DNA profile.

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