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DNA fingerprinting

Leicester University geneticist Alec Jeffreys developed DNA fingerprinting in 1985. Scientists can use DNA fingerprints to identify individuals - just like actual fingerprints. It is especially useful for paternity testing, and for solving crimes. There is enough DNA in a small blood sample to make a DNA fingerprint. Even so, DNA fingerprinting is gradually being replaced by a new technique - DNA STR profiling - for which scientists only need a few hair roots or skin cells, or drops of saliva.

Professor Sir Alec Jeffreys, the inventor of DNA fingerprinting.
Professor Sir Alec Jeffreys, the inventor of DNA fingerprinting.
Cellmark Diagnostics, Abingdon

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