Why do DNA Tribes results identify the populations where a persons DNA profile is most common, instead of estimating admixture from major racial groups?
DNA Tribes analysis is an empirical analysis that identifies a person’s best genetic fits among actual world populations. Although admixture analysis is appropriate only in a limited context, DNA Tribes’ unbiased method of analysis is appropriate for both individuals of mixed and unmixed backgrounds. For people of mixed origins, DNA Tribes results reflect the genetic material actually passed down from both paternal and maternal ancestors. However, admixture is only one of several processes that shape human genetic diversity. Although the human genetic landscape has been influenced by major admixture events (such as the European colonization of Latin America), this genetic structure also reflects the complex interplay of processes including shared historical origins of populations, internal processes such as genetic drift, and gradual small-scale gene flow. For this reason, a simple model of admixture does not explain human variation, and admixture analysis can generate misleading or in
