The assessment of DNA markers, both mitochondrial DNA (women) and Y-DNA (men), to determine lineage and ethnic origin.

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Generational Loss of Data with DNA Testing

I have personally done the Y-DNA, the add-on Y-block with FamilyTreeDNA, mtDNA, and new FamilyFinder/AncestryDNA (via Ancestry) which i plan in transferring to FamilyTreeDNA just recently as a base ...
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2answers
131 views

Y–STR Male Lineage DNA Testing

My father died never knowing who his biological father was. His birth certificate has no father mentioned and whenever we speak to his mother who is still alive, she will not reveal any information. ...
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2answers
111 views

Which type of DNA test?

I am currently starting to research my family history and I am new to the process. How should I go about the DNA testing process? Any DNA testing companies more popular or have larger databases than ...
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2answers
150 views

Interpreting AncestryByDNA results

My AncestryByDNA testing results are: 72% European, 16% Sub-Saharan Africa, and 12% Indigenous American. This suggests Iberian origins. However, all my known ancestors are Irish and most still live ...
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1answer
412 views

Working with autosomal DNA results

I have the automsomal DNA results for myself, 3 full sisters and 1 half-sister. We all share a mother, and we all tested with familytreeDNA. Our results are uploaded to gedmatch.com. Our parents are ...
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1answer
83 views

DNA detection of indigenous grandparents

I have French Canadian Metis grandmothers, but no direct maternal or paternal link - will dna testing recognise the haplogroup?
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2k views

What are some ways to find my haplogroup through my raw DNA data?

I just got my results from ancestryDNA. What are some ways to find my haplogroup through my raw DNA data?
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1answer
451 views

Ancestry DNA - 100% East Asian but how do I find out which group/population/part of East Asia my ancestors are from?

Can I use my raw DNA data to find out which specific part of East Asia my ancestors come from?
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1answer
276 views

Can I get genealogical DNA-testing done on an old blood stain?

My sister has the wallet my father was carrying when he died in a road accident in 1969, complete with resultant blood-stains. Is there a way to do DNA-testing from this blood-testing. What sorts of ...
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1answer
825 views

What DNA test does 23andMe perform?

What DNA test does 23andMe perform? I can't find it stated anywhere on the website. The FamilySearch Wiki appears to imply that they perform the autosomal test and use that to infer Y-DNA and mtDNA ...
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4answers
3k views

Why would I export my raw DNA data?

23andMe, AncestryDNA, and Family Tree DNA all allow you to export your raw DNA results. What is the advantage of doing this? Is there anywhere I can import it for additional analysis?
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0answers
38 views

Reliability of genetic tests [duplicate]

I have been considering getting a genetic test to get an idea of where my genes suggest my family has been. How reliable are these types of tests particularly as my ancestry seems to be spatially ...
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2answers
2k views

What is the significance of “shared centiMorgans”?

I've had my autosomal DNA tested and the site I've used (FamilyTreeDNA) tells me that I have a "Shared centiMorgan length" of 48.08 with my closest match and the "longest block" is 28.89. FamilyTree ...
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1answer
171 views

What's the best way two people that share a surname can determine they're not closely related?

My girlfriend and I both share the same last name and our families claim they are both from the same Korean surname "clan". This is a huge sticking point for her father. I know so far with certainty ...
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3answers
161 views

“Resolution” of DNA testing

What is the spatial/cultural "resolution" of DNA testing for genealogical purposes? How finely can it be used to estimate where a particular person's ancestors were from? I am interested in testing ...
4
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1answer
66 views

Are there mtDNA societies like there are surname societies for Y-DNA?

Males get their Y-DNA from their father and both males and females get their mtDNA from their mother. Because surnames generally follow the Y-DNA, groups of individuals with the same Y-DNA can find ...
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1answer
212 views

Can DNA test prove an African ancestry?

Are DNA tests reliable enough to verify ancestry from Africa? How many generations would appear in such results, since if we go back enough we'll find that human race generated in the African ...
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2answers
86 views

Companies that test foreign DNA for genealogical matters?

Inspired by another question, I got interested in companies that provide DNA tests for genealogy matters. The problem is that the samples would be collected and submitted from Brazil, looking for ...
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2answers
149 views

What factors should I consider when choosing a DNA-testing service?

I and my half-sister are considering having DNA testing done, for the following primary reasons: To attempt to identify my sister's paternal line. We have no information about her father, who may be ...
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3answers
119 views

Where can I list my DNA in Europe (England) to improve the chances of making a match with other researchers?

My DNA is listed on several USA sites. Does any one know of similar sites in Europe (England) where I can try to make a match?
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0answers
138 views

Requesting help with Y-DNA studies of the Bonnell Family that lived in Ireland and came to Pennsylvania in the 1700's [closed]

I'm interested in Y-DNA studies pertaining to the "Bonnell" Family. The line of interest resided in Ireland and seems to be well documented in the USA through the 1700's. My Ancestor was presumably ...
8
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2answers
118 views

What DNA data is important to record?

When DNA testing is done for genealogical purposes, they send back reports with all sorts of incomprehensible information. I want to save the important information with the person in my genealogy ...
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1answer
2k views

Can DNA testing prove that I have Native American ancestry?

I saw on The Generation Project where a man took a DNA test that showed he was some percentage Native American. Or was the chance that he as Native American. I don't remember. Anyway, what about it. ...
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1answer
297 views

How can DNA testing aid me in my genealogy research?

My basic understanding of DNA testing is that it can tell you where your ancestors came from. How can just knowing the ethnic breakdown of my ancestors help me? What if I already know where my ...