My family tree login2/27/2024 ![]() Provides no ancestry information within the last 500 years.Specialized for looking into the deep past.That doesn’t tell me much and doesn’t reflect what I know of my family history. My results say that 45 percent of my heritage came from people living in southwestern Europe 500 to 10,000 years ago. The results are generic, and the ethnicity categories are overly broad. National Geographic Geno 2.0Īt $199.95, National Geographic’s test is the most expensive, yet the least useful. A heat map indicates where members of your maternal line are most prevalent. MOTHERLINE National Geographic Geno 2.0 shows how a customer’s maternal line migrated and changed across time, as determined by analyses of mitochondrial DNA. But my user experience, and results, were quite different for each company. Once I sent in DNA samples, my Web-based results arrived in just a few weeks. Neither type of DNA changes that much over time, so those tests usually can’t tell you much about recent ancestors. In contrast, mitochondrial DNA traces maternal heritage, since people inherit mitochondria, which generate energy for cells, only from their mothers. Y chromosome DNA traces a man’s paternal line. Some of the companies also analyze a person’s Y chromosome or mitochondrial DNA. ![]() SNP matches also help companies see who in their database you’re related to. To estimate ethnic makeup, a company compares your overall SNP pattern with those of people from around the world. These companies analyze hundreds of thousands of natural DNA spelling variations called single nucleotide polymorphisms, or SNPs. This story is part of a series on consumer genetic testing.
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