Those in south east and central England were described by Donnelly as "a real genetic cocktail", with parts of their DNA matching the pre-Roman population, Anglo-Saxon and the Danish Viking settlers. Photo: ROBERT HARDING PICTURE LIBRARY
Welsh And Cornish Are The 'Purest Britons', Scientists Claim -- The Telegraph
Natives from Wales and Cornwall could hold the title for the "purest" Britons, a scientific study suggests.
Scientists drew up a map of the British Isles revealing the genetic ancestry of people from different rural areas across the UK.
After extensive DNA surveying, they found that Welsh and Cornish people were among the most genetically distinct groups in the country.
One theory for the difference in their DNA is that they are a "relic" population, tracing their ancestry back to the tribes that colonised Britain after the last Ice Age 10,000 years ago.
Read more ....
My Comment: A lot has happened in 10,000 years.