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DNA TESTING: MRCA
ESTIMATED TIME OF MOST RECENT COMMON ANCESTOR (MRCA) TABLE | ||||||||||||
| # Markers Test | Match Distance | # of Matching Markers | 50% Probability of Most Likely Estimate of Time to MRCA | 90% Probability of Most Likely Estimate of Time to MRCA | 95% Probability of Most Likely Estimate of Time to MRCA | Related? | ||||||
| no longer than # Gens | # years ago @ 25 yrs/gen | # years ago @ 30 yrs/gen | no longer than # Gens | # years ago @ 25 yrs/gen | # years ago @ 30 yrs/gen | no longer than # Gens | # years ago @25 yrs/gen | # years ago @ 30 yrs/gen | ||||
| 67 | 0 | 67/67 | 2 | 50 / 1918 | 60 / 1908 | 4 | 100 / 1868 | 120 / 1848 | 6 | 150 / 1818 | 180 / 1788 | 99.9% likely related to MRCA in 5 or 6 generations or less |
| 1 | 66/67 | 4 | 100 / 1868 | 120 / 1848 | 8 | 200 / 1768 | 240 / 1728 | 6 | 150 / 1743 | 180 / 1698 | Within 9 generations | |
| 2 | 65/67 | 6 | 150 / 1818 | 180 / 1788 | 12 | 300 / 1668 | 360 / 1608 | 14 | 350 / 1618 | 420 / 1548 | Within 14 generations | |
| 37 | 0 | 37/37 | 2 | 50 / 1918 | 60 / 1908 | 5 | 125 / 1843 | 150 / 1818 | 7 | 175 / 1793 | 210 / 1758 | Within 7 generations (50% chance MRCA was 1 or 2 gens ago) |
| 1 | 36/37 | 4 | 100 / 1868 | 120 / 1848 | 8 | 200 / 1768 | 240 / 1728 | 10 | 250 / 1718 | 300 / 1668 | Within 10 generations (50% chance MRCA was 1-4 gens ago) | |
| 2 | 35/37 | 6 | 150 / 1818 | 180 / 1788 | 12 | 300 / 1668 | 360 / 1608 | 14 | 350 / 1618 | 420 / 1548 | Within 14 generations (50% chance MRCA was 1-6 gens ago) | |
| (for matches in Haplogroup R1b, a 37-marker test is recommended) Perfect match with someone with same surname 90% likely within 16 generations. | ||||||||||||
| 25 | 0 | 25/25 | 3 | 75 / 1893 | 90 / 1878 | 10 | 250 / 1718 | 300 / 1668 | 13 | 325 / 1643 | 390 / 1578 | Related |
| 1 | 24/25 | 7 | 175 / 1793 | 210 / 1758 | 16 | 400 / 1568 | 480 / 1488 | 20 | 500 / 1468 | 600 / 1368 | Related | |
| 2 | 23/25 | 11 | 275 / 1693 | 330 / 1638 | 23 | 575 / 1393 | 690 / 1278 | 27 | 675 / 1293 | 810 / 1158 | Probably related | |
| Related if perfect match with someone of same surname. Mismatches most likely with DYS 439, DYS 385 A, 385B, 389-1, or 389-2 from first panel of 12 markers, or DYS458, 459a, 459b, 449, 464a-d from the second panel. | ||||||||||||
| 12 | 0 | 12/12 | 7 | 175 / 1793 | 210 / 1758 | 23 | 575 / 1393 | 690 / 1278 | 29 | 725 / 1243 | 870 / 1098 | Related |
| 1 | 11/12 | 17 | 425 / 1543 | 510 / 1458 | 39 | 975 / 993 | 1170 / 798 | 47 | 1175 / 793 | 1410 / 558 | Possibly Related | |
| 2 | 10/12 | 31 | 775 / 1193 | 930 / 1038 | >100 | 2500+ | 3000+ | >100 | 2500+ | 3000+ | Not Related | |
| Mismatches most likely with DYS 439, DYS 385 A, 385B, 389-1, or 389-2. | ||||||||||||
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