What can be said is that multiple independent statistical approaches, each with different assumptions and sensitivities, converged on the same basic conclusion: MA-1 carried ancestry specifically related to modern Native Americans and not to modern East Asians.

That convergence across methods is what gives the finding its credibility.

No single test, applied to a single genome, would be sufficient to support the kinds of conclusions the 2014 paper drew.

The combination of multiple tests, a large comparison dataset, and agreement across analytical approaches provides the foundation for the result’s acceptance in the scientific community.

The Population That Bridged Siberia And The Americas

One of the most puzzling aspects of the MA-1 result, when it was first published, was the geography.