il genealogy

Feb 04

il genealogy
Can someone help me find my genealogy?

Info of where I can go to find my ethnic background, or a website that can trace that back? I live in Peoria, IL, and it is no where near Chicago so please don’t direct me there.
That’s honestly a lot of help, but is there a place I can test my blood or something to check that?

You are talking about DNA tests. They don’t use blood in genealogy DNA. They use saliva. There are 3 types of DNA.

Y DNA goes from father to son only. In other words if you have your Y tested it would go back to your father, his father, his father etc.

Mitochondrial DNA goes from mother to both sons and daughters and if you had your tested it goes back to your mother, her mother, her mother etc.

Autosomal DNA which you get 50-50 from both parents. Now when you get back to your grandparents it won’t be 25-25-25-25. You get 50% from your maternal grandparents and 50% from your paternal grandparents but it will not be an even steven breakdown between grandfather and grandmother in either case and this will vary on how it lands in you and your siblings.

Y & Mitochondrial are used by people involved in family history. It can be a very useful research tool enabling people to match themselves with other family trees. They both go back in a straight line virtually unchanged. Now they don’t represent all of your ancestry. Actually they represent a very tiny part of your ancestry. If you have both done right off the bat they would exclude 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, barring any duplicates, you directly descend from 510 individuals. Of those 510 individuals you get your Y from only 8 and your Mitochondrial from only 8 leaving out 494 people.

Now, you might think why bother. If they are used as a research tool then when you match yourself with other family trees you will discover other ancestors in your direct Y & Mitochondrial line but no doubt it will enable you to find some of the left out people.

The best company for Y & Mitochondrial is

http://www.familytreedna.com/Default.aspx?c=1

If you get a “we’re sorry” message just click on Home up above.

One company that only uses Y & Mitochondrial advertises that they will help you discover “your deep ancestral root.” They will assign you to a Haplogroup based on your DNA and will show you the origin of your nomadic ancestor going back thousands of years. However, it is only in 2 lines and you come from a myriad of family lines which increases every generation you go back.

There is one company that I know of that has over 900 sample batches of 100-150 of Autosomal DNA from throughout the world. They will match you with those samples and give you your matches in descending order starting with the top. They will not tell you that you are 1/2 of something, 1/4 of something else and 1/4 of another something else. It will not mean you had ancestors coming from all those countries. The same DNA crosses national, racial and ethnic boundaries. Then they will show you your top ancestry based on these samples, not as countries but as for instance, Northern European, Mediterranean, North African etc.They won’t show it in percentages or fractions but in descending order starting with the top.

The company that does this is

http://www.DNATribes.com

When you go into their website, you can go under feedback and email them and ask questions. If you want your AUTOSOMAL TESTED DON’T USE FAMILYTREEDNA. They do Autosomal testing but they WILL NOT give you an analysis. I think at one time they did.
I had to send my results from FamilyTreeDNA to DNATribes to get my analysis.

I asked DNATribes if my sister with whom I share both parents had the same Autosomal test if her results would 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.”

Also I found a website that stated you don’t get Autosomal 50-50 from both parents so I asked a question about this on the Biology board and this is the reply I received.

“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.

“As to your last question, I’m pretty sure that most of the variation in what DNA you inherit vs. what your siblings inherit is quite random. I don’t think an ancestor from 1700 could somehow dominate the DNA markers in his/her descendents overall. Certain single markers could do that, if they conferred some advantage, but most will be essentially random.”
Source
PHD in Molecular Biology

Here are 2 more links helpful in explaining DNA

http://www.smgf.org/pages/how_it_works.jspx

http://www.pa.msu.edu/~sciencet/ask_st/060293.html

Now someone asked how accurate this is. I am not an expert. I do think if you had more than one company doing this you could get some different results as one company might have some population samples another would not have. Also, I feel there will be people who will not be happy with the results as they have a different idea as to what is in their DNA. They don’t seem to understand there is no national, racial or ethnic purity.

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