The basics of DNA testing for genealogists
By Kitty Munson Cooper
Blogging at blog.kittycooper.com
98% shared
DNA with him
99.7% with me
are NOT
the same as
personal genome tests
Forensic DNA tests
23 pairs of chromosomes
Image of painted chromosomes - Courtesy of DeWitt Stetten, Jr., Museum of Medical Research
Image of painted (SKY) chromosomes - Courtesy of DeWitt Stetten, Jr., Museum of Medical Research
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
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)]
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)]
Mitochondria under the microscope
Image Source: Dartmouth EM images, http://remf.dartmouth.edu/imagesindex.html
By User:Maulucioni via Wikimedia Commons [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)]
Mitochondrial Haplogroups
used by permission from http://stevemorse.org/genetealogy/dna.htm
Autosomal Inheritance by Steve Morse
Inheritance from 8 g-grandparents, courtesy of Angie Bush
Relationship Chart from ISOGG wiki http://www.isogg.org/wiki/Autosomal_DNA_statistics
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
from Cece Moore's blog at http://www.yourgeneticgenealogist.com/2015/02/switched-at-birth-unravelling-century_27.html
My brother at 23andme.com
My brother at Ancestry.com
My brother at FamilyTreeDNA.com
My brother at GEDmatch.com
My brother at DNA.land
Where to test? It depends ...
- 23andme.com
- Ancestry.com
- FamilyTreeDNA.com
http://blog.kittycooper.com/dna-testing/