[wildbill]

The geneticist’s study says there are only 70 separate DNA strains in the bloodlines of all AMerinds.

If some folks can believe that everyone is descended from only two people, I don’t see why a scientific finding of 70 DNA lines in N. America isn’t possible.

[maryz]

The geneticist’s study says there are only 70 separate DNA strains in the bloodlines of all AMerinds.

I don't see how they can conclude 70 individuals as opposed to 70 families or even tribes.