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All the DNA testing companies provide us with reports about our ancestral origins with varying levels of granularity. The technical term is a biogeographical ancestry estimate though historically the incorrect term ethnicity estimate was often used. The population percentages can change dramatically with each new update and the results will also vary considerably from one company to another.
This session will help you to understand the science behind these estimates, why the results can vary so much and what those pesky percentages really mean.
Debbie Kennett is a well-known author and speaker and an internationally recognised expert on genetic genealogy. She is an Honorary Research Fellow in the Department of Genetics, Evolution and Environment at University College London. She is the author of two books: DNA and Social Networking and The Surnames Handbook. She has written widely about DNA testing both for the family history press and in academic journals. She has been interviewed about genetic ancestry testing for BBC Radio 4, appearing on You and Yours and The Business of Genetic Ancestry, and has also appeared on TV on the BBC programme Watchdog.
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