GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2010-02 > 1265039964
From: Vincent Vizachero <>
Subject: Re: [DNA] re GD vs TMRCA
Date: Mon, 1 Feb 2010 11:03:07 -0500
Several years back I made a table (through simulations) that gave an
idea of GD distribution for given levels of relatedness.
On Feb 1, 2010, at 9:02 AM, John Lerch wrote:
> You forgot to mention how many markers you were looking at. E.G. A
> distance of 4 in 1 generation for a 12 marker profile is absurd.
> Sandy P wrote
> Much work has been done on the estimation of TMRCA's between pairs of
> haplotypes but I've not come across anything that addresses the
> question of
> analysing genetic distances for given TMRCA's. That could simply be
> I don't read very widely.
> Whatever the reason, for my own interest, as well as hopefully for the
> interest of anyone interested in deep genealogy, I've had a look at
> The idea is to address for example the following question : If two
> are believed by traditional genealogy to have had a common ancestor
> say 30
> generations ago, what genetic distance would one expect today between
> members of the two different families?
|Re: [DNA] re GD vs TMRCA by Vincent Vizachero <>|