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DNA analysis

DNA analysis

G210/0202

Rights Managed

39.1 MB (4.0 MB compressed)

3269 x 4185 pixels

27.7 x 35.3 cm ⏐ 10.9 x 13.9 in (300dpi)

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Credit

DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY

Caption

Analysis of DNA fingerprints at ICI Cellmark Diagnostics, Oxfordshire. Two technicians are working with X-rays (or autoradiographs) of bands of DNA produced by the technique of electrophoresis in an agarose gel. The pattern of these DNA bands is unique to each individual, but some bands are shared by related people, such as a parent & child. The workers are identifying bands common to mother and child (in red), and father and child (in blue). DNA fingerprints can be used to prove conclusively whether people are related, for instance in cases of disputed paternity, or where immigrants to a country need to prove a family relationship.

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