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Re: Could severe Illnesses cause mutations in a Ydna line?
Posted by: Robert Stafford (ID *****6330) Date: June 13, 2014 at 16:26:13
In Reply to: Could severe Illnesses cause mutations in a Ydna line? by melissa1 of 4712

It would be hard (impossible?) to isolate these factors. The age of the father does seem to correlate with mutations. There might be some accumulated effects that contribute.

However, it is more likely that yours is a case of small sample sizes and/or multiple surname origins. It is best to compare each person to the modal (or ancestral) haplotype of the group than to one another. See:

http://www.worldfamilies.net/blog/16889

Even in documented surname projects, there are often two (or more) people who are 34/37 matches to the ancestral, but are 6 away from one another.


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