This is a 2 round panel that pinpoints the terminal SNP in haplogroup L. This panel is suggested when you have tested M20+ or if your Y-STR results clearly predict that you belong to this haplogroup.

In the first round 2 important SNPs will be tested to find out the main category:
L1321 (equiv. to M27)
L1307

In the second round the testing splits up depending on the results from round 1:
1.) If L1321-, L1307-
L877
M22
M2481
L655 (equiv. to M317)
PH2079
Y18891

2.) If L1321+
Z20464
Z20482
Z20505
Z20514
Z20519
Z20522
Z5929
Z5930
Y17158
Z5931
Y15957
Z5932
Z5933
Z5934
Z20530
Z5937
Z5938

3.) If L1307+
BY199399
Y44848
FGC32262
Y6253
M2398
M2667
Y154689
M2509
M2417
Y33996
Z5919
Z5920
Y12419
Y17954
Z5921
M5513

The test is completed when the unique phylogenetic position on the tree has been determined.

See this tree diagram to understand the groupings in this panel: