DNA results and discussions


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Results of the test for 12 Markers

The tests shown below analysed 12 markers 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.

1

2

3

4

5

6

7

8

9

10

11

12

Dys No

393

390

19

391

385a

385b

426

388

439

389i

392

389ii

Leslie Peacock

14

25

15

10

11

14

12

12

10

13

11

31

Alan Peacock

14

24

15

10

11

14

12

12

10

13

11

31

Bill Burgar

13

24

14

11

12

14

12

12

14

13

13

29

 The sequence of numbers for Leslie Peacock e.g. 14, 25, 15, 10, 11, 14, 12, 12, 10, 13, 11, 31 is referred to as a DNA signature.

Conclusions of the 12 Marker test

To have any real chance of two persons being related they would need to have 11/12 or 12/12 markers in common.

It can be seen that Alan and Leslie may be related on this basis, since they only differ by one marker (Marker No 2 - DYS 390)

In contrast, Bill Burgar differs by at least 7 markers, and thus his earliest male (Burgar) ancestor is totally unrelated to the earliest male Peacock

 

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