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The tests shown below analysed Markers 13 to 25 on the Y-chromosome. The first column in the Table gives the person that provided the test sample.
The 1st line of the table contains the Marker number and the 2nd line shows the Dys numbers; these are abbreviations of the chemical names of the Markers (e.g. Dys 393 or Dys 389i etc).
The 3rd to 5th lines are the Marker values, i.e. the number of repeat beads in the marker chain for Leslie and Alan Peacock. Results for Bill Burgar are shown to illustrate that the results vary considerably if the people do not have the same male ancestors.
|
Marker No. |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
|
|
458 |
459a |
459b |
455 |
454 |
447 |
437 |
448 |
449 |
464a |
464b |
464c |
464d |
|
Leslie Peacock |
16 |
9 |
10 |
11 |
11 |
24 |
14 |
20 |
33 |
12 |
15 |
15 |
15 |
|
Alan Peacock |
16 |
9 |
10 |
11 |
11 |
24 |
14 |
20 |
33 |
12 |
15 |
15 |
15 |
|
Bill Burgar |
18 |
9 |
10 |
11 |
11 |
24 |
14 |
18 |
30 |
15 |
15 |
16 |
16 |
Conclusions of the 25 Marker test
The results of the next 13 markers show that the two Peacocks have exactly the same markers, so they now match 24/25. Normally, if 23 out of the 25 markers agree, and you have the same surname, then FamilytreeDNA.com state that this means that they are 99% likely to be related. The Peacocks match 24/25 and therefore are almost guaranteed to be related.
(Note: Bill Burgar has a further 6 markers that do not agree with those of the Peacocks; added to the previous 7 that did not match in the first 12 Markers means that he only has a 13/25 match, and thus has completely different ancestry on the male side).
