Information for 23andMe users
23andMe only tests for a few of the SNP mutations used to categorize haplogroup G men.
(See DNA explanation on left if you don't know what SNPs are)
They also have been using categories that were in effect in 2008. There have been many,
many changes since then, and most of the important subgroups discovered since.
(see categorization page on left for a list of all categories)
In the project we also use marker results which are not tested at 23and Me.
Recently 23andMe eliminated several of the few important items they do test. This leaves
only a few very general categories, dating back to 10,000 to 46,000 yrs ago. Belonging
to these very general categories is rather meaningless info. Men were then very mobile
hunter gatherers organized into small family bands and could have been living most anywhere.
I once listed the G items tested at 23andMe on this page, but I see no purpose in
maintaining that listing. If one wants to learn meaningful info about Y-DNA ancestry, one
will have to be tested at Family Tree DNA or British Ancestors which test for more
recent subgroups. Family Tree DNA has considerably more comparison samples and
allows testing for individual SNPs. The cost of the initial 37-marker test has ranged between
$119 to $149.
We can often tell the subgroup based on just these 37 markers.