Who am I? Hunt for heritage drives Chinese to DNA tests

Chinese executive Miao Qing spits into a specially designed container, destined for a lab where her saliva will be analysed and sequenced, offering an insight into her genetic make-up and—more importantly—her ancestry.

Investigators say DNA database can be goldmine for old cases

A microscopic thread of DNA evidence in a public genealogy database led California authorities to declare this spring they had caught the Golden State Killer, the rapist and murderer who had eluded authorities for decades.

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