Further reading:
http://upfront.ngsgenealogy.org/2013/08/dna-testing- for-genealogy- 101-what- can.html
http://isogg.org/wiki/Genetic_genealogy
https://en.wikipedia.org/wiki/Haplogroup
https://dna-explained.com/2013/01/24/what- is-a- haplogroup/
https://en.wikipedia.org/wiki/Centimorgan
http://www.thefreedictionary.com/base+pair
http://www.genealogyjunkie.net/my-dna- results-from- 4-companies.html
http://genealogy.about.com/od/dna_genetics/a/dna-tests.htm
http://www.yourgeneticgenealogist.com/
http://thegeneticgenealogist.com/2013/09/22/what-else- can-i- do-with- my-dna- test-
