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MyHeritage DNA uses this reference when analyzing your own DNA, to identify your ethnicity breakdown among these 42 ethnicities, with percentages. The end result became a very rich and consistent reference of 42 Founder Populations, considered to be the best of its kind in the world. "MyHeritage used a statistical procedure called Principal Component Analysis to ensure that each founder population is well-clustered, removing outliers and people who were mistaken about their own heritage. But she said that DNA testing can be a useful tool- when it’s used in conjuction with historical, family tree research.

Genetic genealogist told Nikki that the percentages given by these tests are generally accurate at a continental level, but are less reliable at national level- and that trace ancestry (such as Nikki’s Sub-saharan African result) simply isn’t meaningful. There is nothing intrinsic in your DNA which allows a DNA ancestry service to give you concrete answers about where you are from, and the results cannot be taken at face value as giving a conclusive insight into your heritage. This will be different depending how many peoples’ records are in the database, where they are from and who they are. Our investigation found that the reason for the discrepancies between the results Nikki received are down to the fact that ancestry DNA testing kits can only provide an estimate of what your ancestry may be, based on comparing your DNA to the records of other people held by that company, and mapping where those people are from. While there were some similarities, we couldn’t explain why, for example, only MyHeritage identified Iberia in the results only 23andMe identified Sub-Saharan Africa, and only Ancestry identified Norway. .uk told Nikki that her Ethnicity Estimate was 82% England, Wales and NorthWestern Europe, 15% Ireland and Scotland, 3% Norway.23andMe told Nikki that her Ancestry Composition was 99.9% European (including 61.8% British & Irish, 19.4% French & German) with Trace Ancestry of Broadly Sub-Saharan African.MyHeritage told Nikki that her Ethnicity Estimate was 80% English, 20% Iberian (Spain/Portugal).We bought DNA ancestry kits from three prominent companies- 23andMe, .uk and MyHeritage, to test the DNA of presenter Nikki Fox.