Genetic genealogy has become the premier research tool available to genealogists, and especially to those who have encountered the dreaded "brick wall." No other advancement in genealogical research has been able to tear down as many walls so quickly. As genetic technology advances and genetic genealogy becomes even more popular, its value as a research tool will also continue to grow. The secret to the success of any surname project is the size of the sample, or the number of participants. As the sample size increases, all test results become more valuable.
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