GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2001-02 > 0982382165
From: "Bonner, Gregg" <>
Subject: RE: [DNA] odds
Date: Fri, 16 Feb 2001 22:56:05 -0500
About 1 in 4 to the 20,000th power for mt DNA, which works out to just right
at zero probability - even less for Y chromosome. Essentially it does not
If you consider the other simplistic answer, and consider only living
persons, then it is just the number of descendants of your all female line
(female descendants only plus just the last generation of males). So it
would be that number divided by about 5 billion.
In general, take the number of people who have the same mt DNA as you, and
plot that vs. generation time (i.e., count your siblings and your cousins
that come from your mom's sisters as first generation, then do that same
thing for your grandmas sisters and cousins, etc.), then extrapolate that
number out to point where it crosses the time expected for a random mutation
event, then divide that number by 5 billion.
In any case, a person who shares your mtDNA or Y chromosome are not random.
>>What are the odds that a random person would share your mtDNA or Y-chromo
|RE: [DNA] odds by "Bonner, Gregg" <>|