Can DNA tests detect “Mayflower DNA?” This Thanksgiving story looks at early intermarriage and pedigree collapse among early Pilgrims in New England and the possibility of DNA founder effect—and what this means for genetic detection of Mayflower roots by descendants....
A veteran in the genetic genealogy industry looks back at the history of DNA testing for family history–and to the future: the reconstruction of the entire human family tree. A quick history of DNA testing for family history In the late 1990s and early 2000s,...
How do DNA ethnicity results for identical twins compare at AncestryDNA, 23andMe and MyHeritage? Read the answers here, along with a bonus question about 23andMe traits. Somebody finally did it. A research group has tracked the ethnicity results of 21 pairs of...
How we can extend the limits of DNA ethnicity estimates to make these tests more reliable and relevant for more people? A look ahead at the next generation of DNA ethnicity estimates. This is the final article in Jayne’s excellent, in-depth series on Ethnicity...
Last updated: January 27, 2026 Which DNA testing companies shed the most detailed light on African ancestry? What makes Africa the most genetically diverse continent? Why is it so important for scientists to understand the genetic heritage of those with African...
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