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Chimp DNA yields complex surprises

Genetic differences between chimpanzees and people are more complicated than scientists had previously suspected, according to an international team.

Asao Fujiyama of the National Institute of Informatics in Tokyo and his colleagues used genetic material from three adult chimps to determine the entire DNA sequence of the animals' chromosome 22. They compared this chimp-chromosome sequence with previously acquired sequence data for its counterpart in people, chromosome 21.

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