Gene study suggests Native Americans came from Siberia

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A US genetic study bolsters claims that Native Americans are descended from one migrant group that crossed a lost land link from modern Siberia to Alaska -- not waves of arrivals from Asia, as rival theories say.

The new study by the University of Michigan, published Monday, examined genes of indigenous people from North to South America and from two Siberian groups, the university said in a report introducing the research.

Analysis found one unique genetic variant widespread across both the northern and southern American continents -- suggesting that all Native Americans were descended from a single group, not various ones as the rival theory holds.

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Vernon Clayson - 11/28/2007

Or are the modern Siberians linked to Native Americans by these variant, therefore quaint genetics, the remnant descendants of wandering/migrating/enslaved, or even exploring, Native Americans who traveled to Siberia and remained there? In their research did the University of Michigan dismiss this possibility out of hand or didn't they consider it at all?