So how can one be 10% more French than the other? DNA testing is far from a perfect science, says Sheldon Krimsky, a professor at Tufts University who studies the bioethics of genetic engineering. Having colonial English ancestry, I was surprised when my AncestryDNA results went from 78% British in the old data base to 60% Irish, 8% British, and 9% Western European in the new data base. The rest of the DNA, according to Ancestry, may have traced back to the Middle East and European South or other regions. Tests like these rely on our DNA to answer questions about our ancestry, but DNA actually can't tell us everything. Using a test panel of participants from every major population group, we spent more than 80 hours testing five DNA services and think that AncestryDNA is the best service for most people. But for these distant cousins to have a DNA match, it is not enough that they each inherit some DNA from a common ancestor, they have to inherit the same DNA.

The Welsh and the English DNA have been found to be quite different in this in depth DNA study. ... English DNA 'one-third' Anglo-Saxon. The present-day English owe about a third of their ancestry to the Anglo-Saxons, according to two new studies. I am working on my family genealogy and DNA testing family members.

The results show that one sister is 10% French, the other 0%. When I realized the area they were considering “Irish” covered all of Ireland, Scotland, Wales and a huge swath of England, the results made more sense. I think the large groupings that Ancestry have used simply subsumed the discrete Welsh DNA: It may have removed noise but also reduced sensitivity.

Cousins C and D are a DNA match and so are cousins D and E. In figure 4, you can see how DNA is passed down to distant cousins. Or, at the very least, tell you a bit more about the genetic traits associated with your ancestry. My Dad is a Matlock/Medlock ancestry whose Y-DNA is R1b1b2 (R-M269). Both sisters share the same two parents, and therefore the same set of ancestors. French are not an ethnic group they are a nation built on top of waves of immigration one after the other and this from the beginning of time. Mom's father is an Owens (J2a3-L26). The Ruggles line is R1b1b2 (R-M269) and her Dad's mother's paternal line is Howe (R1b1b2 (R-M269). My Mother is an Owens and her mother is a Ruggles. Two sisters take the same DNA test. All three cousins descended from two common ancestors.