The basics of DNA testing for genealogists
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1371374/TestingImages.png)
By Kitty Munson Cooper
Blogging at blog.kittycooper.com
98% shared
DNA with him
99.7% with me
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1372685/MyChimp.jpg)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/kittycooper/images/1054443/Detective.jpg)
are NOT
the same as
personal genome tests
Forensic DNA tests
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1372691/Sky_spectral_karyotype.png)
23 pairs of chromosomes
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1384410/FamilyTree.png)
Three types of DNA tests
Y test for father's father's line
mtDNA for mother's mother's line
Autosomal DNA test for all your ancestors
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1384415/YvsX.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834196/World_Map_of_Y-DNA_Haplogroups.png)
Y Haplogroups
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834196/World_Map_of_Y-DNA_Haplogroups.png)
Y Haplogroups
By Chakazul, via Wikimedia Commons [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)]
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1384587/Mitochondria__mammalian_lung_-_TEM.jpg)
Mitochondria under the microscope
Mitochondrial Haplogroups
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834525/SteveMorse.jpg)
Autosomal Inheritance by Steve Morse
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1381394/Brynne.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1386178/Cousin_tree__with_genetic_kinship_.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1381386/DNArawData.png)
Your autosomal test data
Why Do A DNA Test?
- Am I who I think I am?
- Ancestry Composition, as expected?
- Find some distant cousins
- Break a Genealogical Brick Wall
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1371374/TestingImages.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834323/SwitchedAtBirth.png)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834339/BigWords.png)
from Cece Moore's blog at http://www.yourgeneticgenealogist.com/2015/02/switched-at-birth-unravelling-century_27.html
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834428/ACship23andme.png)
My brother at 23andme.com
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834432/ACAncestryShip.png)
My brother at Ancestry.com
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834437/ACftDNAship.png)
My brother at FamilyTreeDNA.com
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834503/GEDmatch.png)
My brother at GEDmatch.com
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/2834456/ACdnalandShip.png)
My brother at DNA.land
Where to test? It depends ...
- 23andme.com
- Ancestry.com
- FamilyTreeDNA.com
![](https://s3.amazonaws.com/media-p.slid.es/uploads/176516/images/1371374/TestingImages.png)
http://blog.kittycooper.com/dna-testing/
DNA testing for Genealogists
By Kitty Cooper
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