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What is the Genetic Distance Report?
Genetic distance is FTDNA’s method used to most accurately describe the relationship between 2 people. The method follows either the Step wise model or the Infinite allele model of distance calculation. FTDNA has adopted the methods of calculations as recommended by the Hammer Lab at the University of Arizona.
We have written an algorithm that takes into account the peculiar nature of DYS 389 (whose nomenclature is odd and a direct comparison of 2 samples will tend to overstate or understate the actual difference and DYS 464 which is a multi-copied marker found generally at 4 different places within the Y-Chromosome. The actual corrected distance is presented when you run the FTDNA Genetic distance report.
Administrator’s Note:
I have added the data for the MacGregor of MacGregor haplotype. Some of our members appear to be closely related to that haplotype.
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