SETTLED BY JUST 70 FOLK
Copyright 2005 www.tombraiderchronicles.com
[ May 26th 2005 ]
scientists have uncovered evidence which suggests
North America was originally settled by just a
few dozen people who crossed a land bridge from
Asia during the last Ice Age, according to a report
The explorers were believed to have crossed the
Bering land bridge from Siberia to North America
more than 14,000 years ago.
estimated effective size of the founding population
for the New World is about 70 individuals," said
Jody Hey, a professor of genetics at Rutgers University.
"The beauty of the new methodology is that it
uses actual DNA sequences collected from Asian
peoples and Native Americans, an approach that
can provide a detailed portrait of historical
to livescience.com, previous DNA analysis focused
on one DNA strain and determined population sizes
had been constant over time. The new discovery
is born from the study of nine genomic regions
which accounts for variations in single genes.
This method favoured actual genetic data over
estimates used in previous calculations.