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New research says it can make its DNA traces 1000 years

May 1, 2014 Last updated at 09:26 BST

Have you ever tried to trace your family tree? If so, how do they manage to come back?

A scientist says he has to follow a path where our DNA is formed found, there are more than 1000 years.

The test could identify in. even be able to make the locality of particular ancestors lived

Jenny Hill reports.