Count out five generations to your great-great-great grandparents. You have 32 of them and most of the 16 couples probably had several children. Most of those children eventually married and had several more children and so on. Imagine those sixteen families all multiplying and branching out for five successive generations. You could easily have thousands of living cousins in parallel branches you know nothing about.
- Forensic Genealogy Cases. When tracing “war babies”, this is the a3Genealogy DNA test of choice, especially when crossing genders (female participant with male soldier/father research). Also used for adoption cases.
- Ethnic Breakdowns. Clients sometime need/want to know their ethnic breakdown. Of course we suggest you not do this test for this reason unless you are ready for shocking news. More than once have the results been “disturbing” to clients. The test will give an overall ethnicity percentage using both father and mother’s combined DNA in the autosomal test.
- Cross-gender tests. If there isn’t a living male to tests for the paternal line ancestry (Y-DNA) or no female to provide DNA samples for mitochondrial tests, this may be your only option.
- Medical hints. The 23andme DNA tests offers a look at your health genes.
- Without the paper trail of your family history, unscrambling the autosomal results is, well…., probably impossible. So this is not the test to use if you have not tackled a pretty strong 5 generation family trace.
- It is important to remember this test is for “recent ancestors”; 5 generations back. If you are trying to determine your eligibility for the Society of Charlemagne or Magna Carta, this is not the test for you (unless of course you happen to be a cousin of a society member and just need to prove the last 3-5 generations).
- The autosomal test (Biogeographical) does provide participant’s ethnic ancestry. This will reveal a percentage of Native American, African American (Sub Saharan) and other ethnic percentages but it will probably not be accepted as evidence for Native American Citizenship.