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Old 29th August 2017, 08:22 PM
alphavisions alphavisions is offline
FTDNA Customer
 
Join Date: Jul 2017
Posts: 10
Answer

While using gedmatch testing on 2 nonXmatches, they gave this information about non-Xmatching which I feel comfortable confirms there is some value to nonXMatches:

Based on X-DNA Genetic Distance, there is no relationship through the X-Chromosome. This means that the ancestry of one or both of these 2 individuals probably has one or more Father-to-son generations that has blocked the transfer of X-DNA. That eliminates possible relationship paths that do not contain father-son generations.

Feel free to use the information as you desire.
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