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AncestryDNA and Family Tree DNA Sales + GEDmatch

4/23/2014

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The formatting of the blog posting may be odd if you are reading this in a Feed Reader or via e-mail distribution, so click on the title above (which is an active link) to view the website version.
http://en.wikipedia.org/wiki/File:Dna-split.png
In celebration of DNA Day, which was started back in 2003 to commemorate the 50th Anniversary of the publication of the Molecular Structure of DNA by Watson and Crick, as well as the announcement that the Human Genome Project was very close to complete, both Family Tree DNA and AncestryDNA have announced sales. So if you have been thinking about undergoing DNA testing, now would be a great time to take the plunge.

See below for more details, but these sales don't go on for long, so note the deadlines and don't procrastinate for too long:
  • The Family Tree DNA starts 25 April and ends at 23:59 hours (probably Central Daylight Time) on 29 April 2014
  • The AncestryDNA sale starts 24 April and ends at 23:59 Pacific Daylight Time on 27 April 2014. UPDATES (24/25 Apr 2014): See below, with Mother's Day sale ending 11 May 2014 and DNA Day sale ending 27 April.

I've been tracking DNA sales at the various companies, so to see how these sale prices compare with others, check out How Much Do DNA Tests Cost? If you live outside the USA, see Notes for UK (and ex-US) Residents.

I've also included some details about GEDmatch, which doesn't need to have a sale, as it's free! In the event you haven't heard about it, I encourage everyone who has tested at FamilyTreeDNA (their Family Finder test), AncestryDNA, and 23andMe to upload their data to GEDmatch, as it has various comparison tools not available elsewhere – and it gives you additional matches to others who used a different DNA testing company from you.


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Chromosome Mapping of Matching DNA with Adoptees

4/17/2014

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The formatting of the blog posting may be odd if you are reading this in a Feed Reader or via e-mail distribution, so click on the title above (which is an active link) to view the website version.
"Chromosome mapping is a technique used in autosomal DNA testing which allows the testee to determine which segments of DNA came from which ancestor. In order to map DNA segments on specific chromosomes it is necessary to test a number of close family relatives. Ideally one should test both parents, one of their children, and a number of first to third cousins on both the maternal and paternal sides of the family." (Source)
As an alternative to using chromosome mapping as described above, I've created a chromosome map of adoptees who match me and my close relatives (both parents, and an uncle and aunt). None of the adoptees is a particularly close match (the closest is a predicted 3rd to 5th cousin), so I'm unlikely to be able to help any of them identify their biological families at this stage. However, I thought this would be a good way to keep track of them, so that when my chromosome map of ancestors is more complete, I'll be in a better position to give pointers of either family names or geographical locations where adoptees and others looking for their biological families may find the answers they are looking for.

Chromosome Map of Matching DNA with Adoptees
Chromosome Map of Matching DNA with Adoptees

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