Archive | February 2013

How is it that I share such a large DNA segment with so distant a cousin?

I recently posted this insight to the DNA-NEWBIE mailing list.

I have found it interesting that I share fairly large segments with a 10th and a 14th cousin but none with a 4th cousin that my Dad does share DNA with. Norwegian records are good so all these cousins have good paper trails. i did notice that we all come from many generations of large families…

This blog article offers a good mathematical explanation of this phenominum.