I appreciate all your guesses about my heritage! What a diverse answer set - I was impressed! Now...on to the results.
mtDNA. That is what my recent DNA test analyzed, which is maternal DNA. This passes down from mother to child, with little or no alterations in the sequence. However, these rare mutations allow scientists to assign people to "haplogroups". Members of a haplogroup are descended from a single common female ancestor who first had that particular collection of mutations. Haplogroups are usually assigned a geographic location based upon the location of the current population.
My results came back that I am a member of Haplogroup A2. Haplogroup A is found throughout modern Asia. Haplogroup A1 is found throughout modern Asia, while subgroup A2 originated in Siberia. Archaeological evidence suggests that the founders of modern Native American populations migrated to North America from Siberia over a land bridge across the Bering Strait, tens of thousands of years ago. These people populated all of North, Central and South America.
I read all this in my results, including information that I have the same mtDNA as at least six other people on the planet, who are in the Genetree database. They were all born in ONE place - every single one of them - the State of Guerrero, Mexico, home to Acapulco, and the silver mining town of Taxco. I have actual names of some of these people, but knowing that there could be literally hundreds of thousands of people within this mtDNA haplogroup - I'm not going on a man(or woman) hunt.
So, there you have it! I suppose I can say that I'm most likely "half-Mexican." Surprised?