An early DNA fingerprint showing DNA patterns from a mother (lanes 2 and 8) and her four children (adjacent lanes to the right). Lane 1 is an unrelated person. The two sets of lanes show the fingerprints reveled with two different probes that detect different types of repeated sequences.

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Credit

An early DNA fingerprint showing DNA patterns from a mother (lanes 2 and 8) and her four children (adjacent lanes to the right). Lane 1 is an unrelated person. The two sets of lanes show the fingerprints reveled with two different probes that detect different types of repeated sequences. Alec Jeffreys. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.