Endogamy, or the practice of marrying within the confines of a population due to cultural, religious, linguistic, or geographic isolation, presents challenges for autosomal DNA analysis.
Individuals from endogamous populations often share multiple ancestors in common with their DNA matches or descend from the same ancestors multiple times resulting in higher than expected amounts of shared DNA given their closest genealogical relationships. [Read more…] about Genealogy: DNA Strategies for Dealing With Endogamy