Doesn't that assume no overlap? It seems like the odds of 2^n unique ancestors w... | Hacker News

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bradleyjg on April 5, 2014 | parent | context | favorite | on: Rare 'goat-sheep' born on Irish farm

Doesn't that assume no overlap? It seems like the odds of 2^n unique ancestors would be pretty low by the time you get to 10.

maxerickson on April 5, 2014 [–]

This seems like a reasonable discussion of the issue:

http://gcbias.org/2013/11/11/how-does-your-number-of-genetic...

After ~15 generations your genealogical ancestors aren't all that likely to have contributed much to your DNA.

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