Identifying and Examining DNA Outliers

Presented by Blaine T. Bettinger, Ph.D., J.D. on April 20, 2020
1 hour 1 minute
Genetic Genealogy

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The amount of DNA shared by two people with a specific genealogical connection can vary considerably. The Shared cM Project attempts to identify these ranges by collecting information from thousands of example relationships. However, sometimes we find shared DNA amounts that don’t fit the expected relationship. Does this mean the expected relationship is incorrect, or that it is truly an outlier? Together we will examine the methodologies used to examine possible outlier situations.

About our speaker: Blaine Bettinger, Ph.D., J.D., is a professional genealogist specializing in DNA evidence. He is the author of the long-running blog The Genetic Genealogist, and frequently gives presentations and webinars to educate others about the use of DNA to explore their ancestry.