Ancestry.com

The buggers get you to do their work for them; build your family tree inside their app.

Of course, if you do so there’s no motivation for them to spend any money on your DNA test. Six generations of your family tree is all they need to give you your results as a percentage of regional DNA clusters.

Say you had one German ring-in over 6 generations, then you’d have 4% South German in your results, for example.

After six generations they don’t need any more because the impact of further generations becomes diminishingly small. Six generations is, coincidentally exactly what most databases provide.

Since they have aggregated every database of births, deaths and marriages in the world, it would be a trivial task for them to automate the generation of your family tree.

But they go through the charade of involving you in a manual process so you feel like you’ve got your money’s worth.

But do they actually do DNA tests?