Why don't project members who match perfectly at Y-DNA 67 markers match each other with Family Finder?
It is not unusual for the relationship to be undetected by Family Finder which is an autosomal DNA test. Most Y-DNA 67 exact matches are related within six generations. That is 4th cousins. The Family Finder test will detect a relationship between only about half of all 4th cousins.
The Phillips DNA Project News
Y-DNA matches who don't match on Family Finder
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- Written by Nancy Kiser