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Robert Blair & Elizabeth Rankin The Robert Blair - Elizabeth Rankin line continues to be elusive. We now have the results of five paricipants who believe they descend from this line. Unfortunately these results indicate that all these participants DO NOT share a common ancestor. The table below shows the number of mismatches each participant has with each of the other participants.
The actual marker values for each participant are shown in the table below.
The diagram below show the pedigrees of the
five participants based on conventional research. Participants 6086 and 9084 are believed to share a common ancestor (George Oscar Blair and Clarissa Torrey). There are 7 transmission events (opportunities for a mutation) between the two participants. The expected number of mutations (marker differences) in 7 transmission events is 0.7. The probability of 3 mutations in only only 7 transmission events is less than 3.0%. Participants 5328 and 18895 match 25/25 but share a common ancestor in 3 transmission events. With only 3 such transmission events you expect to have a perfect match. Comparing participant 5328 with 6086: there are 15 transmission events between these two participants and differ on 18 markers with a genetic distance of 25. The probability of 25 mutations in 15 transmission events is less than 0.00001%. Comparing participant 5328 with 9084: there are 16 transmission events between these two participants and differ on 18 markers with a genetic distance of 26. The probability of 26 mutations in 16 transmission events is less than 0.00001%. There is no way 5238 (or 18895) can share a common ancestor with either 6086 or 9084.
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© November 1, 2002,
Blairgenealogy.com
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