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What do DNA test show when you get ur results back 4 genealogy?

What do DNA test show when you get ur results back 4 genealogy? Topic: Genealogy dna research
June 16, 2019 / By Unice
Question: I was just wondering because i was thinking about doing this but don't wanna waste money. Thanks soooo much (:!!!!!
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Best Answers: What do DNA test show when you get ur results back 4 genealogy?

Sariah Sariah | 9 days ago
There are 3 types of DNA. Y DNA goes from father to son only Mitochondrial goes from mother to both sons and daughters but only the daughters pass it on to their children. Autosomal you get 50-50 from both parents. However, when you get back to your grandparents it will not be 25-25-25-25. You got 50% from your paternal grandparents and 50% from your maternal grandparents but the breakdown between grandmother and grandfather will not be even. It will be bias in favor of one over the other on both sides of the family. How you inherited that bias will not necessarily be how your siblings inherited it. In genealogy Y & Mitochondrial are used as a tool to match one person's family tree with another. They both represent a tiny part of your ancestry and your DNA. However, they both go back in a straight line virtually unchanged. If you are involved in family history and want to match yourself with other family trees, the oldest company and one with the largest database is http://www.familytreedna.Com When you go into their website if you go under "feedback" there is a way you can email them and ask questions. Now, one company that only does Y & Mitochondrial advertises that they will help you "discover your deep ancestral roots." It is true in those 2 lines only they will assign you to a Haplogroup based on your DNA and show you the origin of your nomadic ancestors going back frequently over 100,000 years. However, you descend from a vast myriad of family lines. Your ancestry pyramids as you go back. You have 2 parents, 4 grandparents, 8 great grandparents, 16 great great grandparents and so on. In each generation you get your Y from only 1 and your Mitochondrial from only 1. In other words when you get back to your 16 great great grandparents, 14 of them will not be included in y & Mitochondrial testing. Now no doubt if you use Y & Mitochondrial only as a tool in genealogy research and discover other family trees related to you, you will discover some of the left out people. Autosomal is too complicated to use for genealogy purposes, at least at present. However, there is one company in the U.S. that will take your Autosomal DNA and match you with population groups throughout the world. They have over 900 batches of 100-150 population samples. They won't 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 the same DNA crosses national, racial and ethnic boundaries. There are no pure nationalities, races or ethnicities. I think it is funny when I hear someone say they are a "full blooded such and such." It sounds like they are talking about their pedigree horse or dog. What they will do is show you your matches in descending order starting with the top. The company that does this is http://www.DNATRibes.Com When you go into their website there is a way you can email them and ask questions. 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: "Family members do typically share some regional or ethnic genetic affiliations, but in some cases matches can vary substantially between siblings." I would imagine that is because when we get back to our grandparents the results can vary. Now, how accurate, I not going to say. I can see if more than one company did this type of testing the results might vary as one company might have population samples the other one didn't. FamilyTreeDNA does do Autosomal testing but they no longer will give you an analysis. I had to send my results from them to DNATRibes. Now when you communicate with any of these company, don't let them spin you. A person with one company that only uses Y & Mitochondrial said the only reason a person would want Autosomal testing is if they are biracial. Now for people who descend from immigrants through Ellis Island they probably have a very good idea of where their ancestors came from because their ancestors for many generations lived in the same neighborhood with their own, married only those of one of their own etc. Some of us whose ancestors never saw the Statue of Liberty don't have have that good of a picture. My maternal grandmother's ancestry was 100% southern American colonial. She had ancestors at Jamestown but she also had an Alsatian German ancestor that came to Maryland about 1700 and a French Huguenot that came to Virignia about the same time. Also it appears now she had one from Pomerania. Here are a couple of more links that explains DNA http://www.smgf.org/pages/how_it_works.j... http://www.pa.msu.edu/~sciencet/ask_st/060293.html
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Sariah Originally Answered: What do DNA test show when you get ur results back 4 genealogy?
There are 3 types of DNA. Y DNA goes from father to son only Mitochondrial goes from mother to both sons and daughters but only the daughters pass it on to their children. Autosomal you get 50-50 from both parents. However, when you get back to your grandparents it will not be 25-25-25-25. You got 50% from your paternal grandparents and 50% from your maternal grandparents but the breakdown between grandmother and grandfather will not be even. It will be bias in favor of one over the other on both sides of the family. How you inherited that bias will not necessarily be how your siblings inherited it. In genealogy Y & Mitochondrial are used as a tool to match one person's family tree with another. They both represent a tiny part of your ancestry and your DNA. However, they both go back in a straight line virtually unchanged. If you are involved in family history and want to match yourself with other family trees, the oldest company and one with the largest database is http://www.familytreedna.Com When you go into their website if you go under "feedback" there is a way you can email them and ask questions. Now, one company that only does Y & Mitochondrial advertises that they will help you "discover your deep ancestral roots." It is true in those 2 lines only they will assign you to a Haplogroup based on your DNA and show you the origin of your nomadic ancestors going back frequently over 100,000 years. However, you descend from a vast myriad of family lines. Your ancestry pyramids as you go back. You have 2 parents, 4 grandparents, 8 great grandparents, 16 great great grandparents and so on. In each generation you get your Y from only 1 and your Mitochondrial from only 1. In other words when you get back to your 16 great great grandparents, 14 of them will not be included in y & Mitochondrial testing. Now no doubt if you use Y & Mitochondrial only as a tool in genealogy research and discover other family trees related to you, you will discover some of the left out people. Autosomal is too complicated to use for genealogy purposes, at least at present. However, there is one company in the U.S. that will take your Autosomal DNA and match you with population groups throughout the world. They have over 900 batches of 100-150 population samples. They won't 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 the same DNA crosses national, racial and ethnic boundaries. There are no pure nationalities, races or ethnicities. I think it is funny when I hear someone say they are a "full blooded such and such." It sounds like they are talking about their pedigree horse or dog. What they will do is show you your matches in descending order starting with the top. The company that does this is http://www.DNATRibes.Com When you go into their website there is a way you can email them and ask questions. 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: "Family members do typically share some regional or ethnic genetic affiliations, but in some cases matches can vary substantially between siblings." I would imagine that is because when we get back to our grandparents the results can vary. Now, how accurate, I not going to say. I can see if more than one company did this type of testing the results might vary as one company might have population samples the other one didn't. FamilyTreeDNA does do Autosomal testing but they no longer will give you an analysis. I had to send my results from them to DNATRibes. Now when you communicate with any of these company, don't let them spin you. A person with one company that only uses Y & Mitochondrial said the only reason a person would want Autosomal testing is if they are biracial. Now for people who descend from immigrants through Ellis Island they probably have a very good idea of where their ancestors came from because their ancestors for many generations lived in the same neighborhood with their own, married only those of one of their own etc. Some of us whose ancestors never saw the Statue of Liberty don't have have that good of a picture. My maternal grandmother's ancestry was 100% southern American colonial. She had ancestors at Jamestown but she also had an Alsatian German ancestor that came to Maryland about 1700 and a French Huguenot that came to Virignia about the same time. Also it appears now she had one from Pomerania. Here are a couple of more links that explains DNA http://www.smgf.org/pages/how_it_works.j... http://www.pa.msu.edu/~sciencet/ask_st/060293.html
Sariah Originally Answered: What do DNA test show when you get ur results back 4 genealogy?
They'll show from which area of the world you come from, for example North Western Europe, or Southeast Asia

Nora Nora
They'll show from which area of the world you come from, for example North Western Europe, or Southeast Asia
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Nora Originally Answered: What do positive results from a tilt table test mean?
Hi I shouldnt worry too much. Maybe its a case of the doctor has the results back earlier than expected, and can start you on meds quicker. It could be that the 'positive' results may mean you need further tests. I know this must be worrying for you, but I think you should look at it in a positive way, meaning you are going to be treated earlier and feel better again. I think if it were anything to really worry about, your doctor would have made an appointment at the Hospital to admit you. Try not to worry, (difficult, I know) as this could send your BP up - I think you will get good news! Best of Luck hun!!!
Nora Originally Answered: What do positive results from a tilt table test mean?
A tilt table test is used to evaluate the cause of unexplained fainting or severe lightheadedness. During the test, your blood pressure and heart rate are monitored. You begin by lying flat on a table. Then, the table is tilted to raise the upper part of your body — simulating a change in position from lying down to standing up. This test allows doctors to evaluate your body's cardiovascular response to this change in position. When you stand up, gravity causes blood to pool in your leg veins, reducing the amount of blood that returns to your heart. This causes your blood pressure to drop (orthostatic hypotension). Normally, your autonomic nervous system rapidly accommodates this effect by narrowing (constricting) your blood vessels and increasing your heart rate. But if these mechanisms don't work normally, the drop in blood pressure can be severe enough to cause fainting. The tilt table test can help detect orthostatic hypotension. Causes of orthostatic hypotension may include diseases that affect the autonomic nervous system, such as diabetic autonomic neuropathy and Shy-Drager syndrome. Take care of ypurself as always! PS:A tilt table test is considered positive if the patient experiences symptoms associated with a drop in blood pressure or cardiac arrhythmia. A normal person's blood pressure will not drop dramatically while standing, because the body will compensate for this posture with a slight increase in heart rate and constriction of the blood vessels in the legs. If this process does not function normally in the patient, the test could provoke signs and symptoms ranging from minor lightheadedness to a very severe cardiac episode, depending on the person.

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