Whole genome sequencing (WGS) is now available and even (relatively) affordable, especially during Black Friday sales. Should you do it? Black Friday is coming. Like Amazon and Walmart, the consumer genetics industry throws their hat in the ring with killer deals that...
DNA ethnicity estimates are more reliable for certain locations than others. Here’s which regions of Europe are more (and less) likely to be identified correctly. Here’s a great word: allele [uh-leel]. It refers to a specific physical location on a chromosome that can...
DNA ethnicity estimates are so complex—like the weather—that they vary for the same person even at the same testing company. Here, let us explain. Is the title of this article unsettling? Don’t worry: I think you’ll actually be relieved at the explanation by the time...
The best DNA ethnicity results—most accurate and specific—vary across testing companies. Here’s some hard data for 23andMe and AncestryDNA. In my most recent post, I explained two key metrics in DNA ethnicity estimates: precision and recall. (The M&M analogy I...
Here’s how to calculate the pedigree collapse effect in your own DNA matching discoveries. The bottom line may not be as scary as you thought for your genetic genealogy! In the first part of this two-part article, I defined how pedigree collapse (the intermarrying of...
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