DNA Research #DNA Re: Obtaining a match 7+ generations ago #dna


On 2005.08.07, Donn Devine <> wrote:

A one-step difference among 37 markers would push the probability
range back to 12 generations."
According to one testing company, a 35/37 match has a 72.19%
probability of sharing a common ancestor within the last 200 years.

In a DNA project I am involved with, we have known second cousins who
match only 35/37. On the other hand, we have fourth cousins who match

Eleanor Gordon
Lafayette, CA