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Interpreting Genetic Distance
The following tables
will help explain how you should interpret the genetic distance (the number of Alleles or markers that match between participants)
as shown on the DNA results for the “Stockton DNA Project Members” (interpretations are provided by “Family
Tree DNA”)
Results
for 12 MARKER TEST
DISTANCE |
RELATEDNESS |
EXPLANATION |
0 |
Related |
Your perfect 12/12 match means you share
a common male ancestor with a person who shares your surname (or variant). These
two facts demonstrate your relatedness |
1 |
Probably Related |
You
share the same surname (or variant) with another male and you mismatch by only one ‘point’ on only one marker. For most closely related or same surnamed individuals, the mismatch markers are either
DYS 439 or DYS 385 A, 385 B, or 389-1. Mismatch only in one and you are certain. |
2 |
Probably Not Related |
You
share the same surname (or variant) but are off by 2 ‘points’ or 2 locations on just 12 markers. It is only possible that you and another related family members line, have each had a mutation. There are two ways with DNA testing to confirm or deny. One
is to test additional family members to search for a line that shows a mutation that is 1 point closer to your sample. The other is to order the Y DNA Refine 13-marker panel. Refining greatly enhances sciences ability to determine relatedness.
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 probably not related. |
3 |
Not Related |
9/12 - is too far off to be considered related. Unlikely, but vaguely possible, so that the rule for Probably Not Related applies. |
4 |
Not Related |
8/12 - You are not related and the odds greatly
favor that you have not shared a common male ancestor with this person in excess of 2,000 years |
5 |
Not Related |
7/12 - You are not related and the odds greatly
favor that you have not shared a common male ancestor with this person in excess of 5,000 years. |
>5 |
Not Related |
You
are totally unrelated to this person. |
The following are results for those participants taking the 25 Marker
Test.
Results
for 25 Marker Test
DISTANCE |
RELATEDNESS |
EXPLANATION |
|
0 |
Related |
Your
perfect 25/25 match means you share a common male Ancestor with a person who shares your surname (or variant). These
two facts clearly demonstrate relatedness |
|
1 |
Related |
You
share the same surname (or variant) with another male and you Mismatch by only one “point” on only one marker. For most Closely related same surnamed individuals, the mismatch markers Are usually
either DYS 439 or DYS 385 A, 385 B, or 389-1 from Our first panel of 12 markers,
and from the second panel: DYS # 458, 459a, 459b, 449, 464 a-d, which have show
themselves to move most rapidly. The probability of a close relationship is very
high. |
|
2 |
Probably Related |
You
share the same surname (or variant) with another male and you Mismatch by 2 ‘points’ from the 25 markers we tested. For the Most closely related and same surnamed individuals, the
Mismatch
markers are either DYS 439, or DYS 385A, 385B from
Our first panel of 12 markers, and from the second panel: DYS #s 458,459a, 459b, 449, 464 a-d, which have
shown themselves to move most rapidly. The probability of a close relationship
is good, however the results show mutations. And therefore more time between the two same surnamed persons. Continued testing should find males near or perhaps identical to this group member.
|
|
3 |
Probably Not Related |
You
share the same surname (or variant) but are off by 3 ‘points’Or 3
locations on the 25 markers tested. If enough time has Passed it is possible
that these two group members are distantly Related family members. However, that
would nearly require that each line had passed a separate mutation and one would have
experienced 2! The only way to confirm or deny is to test additional family
lines and find where the mutation tool place. Expressed another way, assume your
score puts you at 3 on the Clock., assume the person 3 from you is at the 9 position.
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 the possibility of a match exists, but
further evidence should be pursued.
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4 |
Not Related |
21/25
is too far off to be considered related. Unlikely but vaguely possible that the
rule for ONLY Possible related applies. It is important to determine what set
of results most typifies ‘most’ members of the group you are ‘close’ to matching. You may be 21/25 with an individual, but 23/25 with the center (most common) of the group, and your potential
relatedness to him is through the center of the group. |
|
5 |
Not Related |
20/25 You are not related and the odds greatly favor that you have not shared a common male ancestor with this person in excess of 2,000 years. |
|
6 |
Not Related |
19/25 You are not related and the odds greatly favor that you
have not shared a common male ancestor with this person in excess of 5,000 years
|
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>6 |
Not Related |
You
are totally unrelated to this person. |
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