62584d79_me_STR_markers_be_interpreted___Relationship
[Genetic Distance] 2 [Interpretation] A 10/12 match between two men who share a common surname (or variant) means they are unlikely to share a common male ancestor within the genealogical time frame. To ensure that the match is authentic, you should utilize additional markers.There are two ways with DNA testing to confirm or deny the relationship. One is to test additional family members to search for a line that shows a mutation that is one point closer. The other is to test additional markers. Testing additional markers greatly enhances science’s ability to determine relatedness geared towards the most accurate assessment of the number of generations to a shared ancestor. Only by further testing can you find the person in between each of you. This in ‘betweener’ becomes essential for you to find, and in their absence, we feel you are not related. [Relationship] 
Probably Not Related
R e l a t e d
P o s s i b l y R e l a t e d
P r o b a b l y N o t R e l a t e d
N o t R e l a t e d
FTDNA Learning Center – If two men share a surname, how should the genetic distance at 12 Y-chromosome STR markers be interpreted?
Relationship