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Gilbert Genealogy Y-DNA Project
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Kit 79470 1. Edward Gilbert b: 1725 in NC d: 1782 in Guilford, NC The following communication is from Family Tree DNA explaining why the genetic distance between this sample and Kit 48510 should be considered three instead of the apparent six or seven.
"This is an interesting case. These two males have a genetic distance of one
at CDY a and b (although it is counted as two, since there is a one step
difference at Cdy a and b, it should be considered one) that is being scored
as two. Additionally, current research has shown that mutations that occur at
464 and CDY a and b may occur at the same due to their location on the Y-DNA
(close to the markers responsible for sperm genesis which seem to cause more
mutations in the passing of mutations at 464 and CDY a and b) so while genetic
distance is technically 5, I would consider the changes to have happened at
464 and CDY a and b to have happened at the same time and would list the
genetic distance at 3 on these 37 markers."
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