Has anyone tried ancestry testing ?
I am interested in doing a DNA test to map out my ancestry. I know I am 50% Spanish 25% Italian 25% Hungarian but would like to search deeper but not sure if these test can decipher someone with mixed race.
Has anyone tried this? what was the outcome?
Thank you
I have had both my Mitochondrial and Autosomal tested.
There are 3 type of DNA tests.
Y goes from father to son only. In other words you get your Y from your father and his father and his father so on back down the line.
Mitochondrial goes from mother to both sons and daughters but only the daughters pass it on to their children. You get your Mitochondrial from your mother, and her mother and her mother so on back down the line.
Autosomal is what most of your DNA is. You get it 50-50 from both parents.
You have 23 chromosomes each from both parents. One each is made up of Y & Mitochondrial and determines your sex. The other 22 chromosomes each are made up of your Autosomal DNA. Those 22 pretty much determine your genetic pattern. They determine your appearance such as pigmentation, height and bone structure.
Y & Mitochondrial are used by people involved in family history. They both go back in a straight line virtually unchanged and can be very important in matching you with other family trees. They are useless unless they are used with family research.
Right off the bat they will leave out your paternal grandmother and maternal grandfather. The number of people you descend from pyramids as you go back. If you get back to your 6xgreat grandparents. you are directly descended from 510 individuals. Of those 510 individuals you get your Y DNA from only 8 and your Mitochondrial DNA from only 8 leaving out 494 people.
Now, you might think, why bother. Well if you are doing reseach and the Y & Mitochondrial helps you to match other family trees, you will no doubt discover some of the left out people.
The best company that will do your Y & Mitochondrial is
http://www.familytreedna.com/Default.aspx?c=1
Apparently your nationality is American and your ancestral heritage is Spanish, Italian and Hungarian as far as you know. All 3 of those heritages are caucasian. So you are not a mixed race person.
There is one company that will take your Autosomal DNA and match you with population groups throughout the world. They will not tell you that you are 1/2 of something, 1/4 of something else and 1/4 of another something else. You have to understand there are no pure nationalities or pure races or ethnicities. What they will do is give you your top matches in descending order.
The company is http://www.dnatribes.com
When you go into their website you can go under feedback and send them an email and ask questions.
FamilyTreeDNA does do Autosomal testing but they will not give you an analysis. I think at one time they did. I had to send my results to DNATribes to get an analysis.
Now I asked DNAtribes if my sister with whom I share both parents had the same Autosomal test would her results be the same and they replied:
“Two siblings will each obtain unique results. Family members do typically share some regional or ethnic genetic affiliations, but in some cases matches can vary substantially between siblings.”
You get your Autosomal 50-50 from both parents but when it gets back to your grandparents, it is not necessarily a 25-25-25-25 split. I had read once on an website where you don’t get it 50-50 from both parents so I asked a question on the Biology board and got this reply.
“Actually, you do inherit your autosomal DNA 50-50 from each parent. That site is wrong.
“Your mother’s egg contributes one set of 22 autosomes and one sex chromosome (an X). Your father’s sperm contributes the other set of 22 autosomes, and another sex chromosome (either an X or a Y).
“Where the 50-50 part breaks down is when you pass on your DNA to your children. Each of your children will get half their DNA from you, but they won’t necessarily get an equal mix of what you inherited from your parents. They could inherit a more from your mother, through you, and less from your father, or vice versa.
“Another way to look at it: you inherited 50% of your autosomal DNA from each parent, but you didn’t necessarily inherit exactly 25% from each grandparent. Your maternal grandparents contributed exactly 50% in total, but it could be biased in favor of either your maternal grandmother or your maternal grandfather. Same goes for your paternal grandparents.
“When you take one of those DNA tests, which markers they find depend on which ones you inherited through your mother and father, and that will be different between you and your siblings (assuming no identical twins). If one of your grandparents is Dutch, and another is Polish, you might happen to inherit more markers that the test considers NW Eur., and your sister might happen to inherit more that are considered E Eur. In most cases, that will just be a random chance. Also, just because you have more markers that the test considers NW Eur, doesn’t necessarily mean you really are “more” NW Eur. in any real sense”.
Source(s):
PhD in molecular biology
There is one company that does Y & Mitochondrial fre
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