My Surname List

Thursday, July 19, 2018

Transfer Thursday - DNA Testing

I’m calling this Thursday’s blog post “Transfer Thursday – DNA Testing”. If you’re new to genetic genealogy, you may be asking, “Transfer what?” Let me explain. If you’ve tested your autosomal DNA (atDNA) at one of the major testing companies, such as Family Tree DNA (Family Finder), 23andMe, AncestryDNA or MyHeritage, etc., you may want to transfer your raw data file to GEDmatch. GEDmatch is not a testing company, but rather a database to upload your raw data files from other testing companies for comparison. Say you only tested at AncestryDNA and another person only tested at 23andMe. If you both submit your raw data files to GEDmatch, your relative match list will contain people that have tested at the other testing companies that you didn’t test with. You (the AncestryDNA tester) and that 23andMe tester may turn up at GEDmatch as DNA relatives. As genetic researchers, you (like me) want to have your raw data in as many places as you can put it to get as many matches as possible for comparison.

AncestryDNA has a huge database now (the biggest of all the companies), but it doesn’t give testers a chromosome browser and isn’t going to. For serious genetic researchers, yes, you need the chromosome browser. If you upload your raw data files to GEDmatch, you are able to compare relatives (from your match list) chromosome by chromosome.

This blog post by Jared Smith can help you understand more about why you would need a chromosome browser. His post can be found at Genetic Genealogy using GEDmatch An Absolute Beginner's Guide. 

Pallasart Web Design’s blog post for July 19, 2018 is Comparing My Ancestry.com Results to GEDMatch. For those of you interested mainly in your ancestry origins, this blogger shows his ethnicity breakdown at AncestryDNA and at GEDmatch using their tools.

Jennifer Dondero, The Occasional Genealogist, blogged about a free dna tool. What tool is that? Why, GEDmatch, of course. Find her post at The Free DNA Tool You Need to Know.  

So, it's Transfer Thursday. Learn about GEDmatch. And transfer your raw dna files today. 


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