For questions about using DNA to further knowledge of family history, relationships, ethnic origin, and overall ancestry. Most common tests include Y-STR/Y-SNP DNA, mitochondrial DNA (mtDNA), and Autosomal DNA.

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0answers
23 views

How can you use FamilyTreeDNA's Search tool to contact matches / find contact information?

How can you use FamilyTreeDNA's Search tool to contact matches / find contact information? I have been continually challenged (as described in the challenges below) by trying to figure out how to use ...
4
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7answers
165 views

DNA Features of Genealogy Software

Have any traditional genealogy software programs that people use for recording their genealogy research added any features to support DNA research? I know there are a lot of DNA utility programs out ...
2
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1answer
43 views

ISOGG Y-DNA Haplogroup Tree download

On isogg website (http://isogg.org/tree/ISOGG_YDNATreeTrunk.html) I only found the html-based version of a Y-dna tree, that is not very easy to use. I want to download in to my personal computer and ...
5
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1answer
47 views

What GEDCOM tag should the DNA Haplogroup be stored?

I was reviewing the GEDCOM 5.5 specification and I am not clear as to what field should be used to store the basic Haplogroup information for an individual from DNA testing as described in What ...
0
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1answer
83 views

According to my family DNA what is my true ethnicity? [duplicate]

My maternal grandmother (b. 1911/d. 1940) was of mixed race (white father and black mother, her father left and she was raised by her mom) Her husband (my maternal grandfather) was born in the 1890's ...
6
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2answers
79 views

Making Research Plans for studying the Genetic Genealogy of an Adoptee?

I have accounts on 23andme, gedmatch, ftdna, and ancestry.com's ancestrydna (all autosomal at this point). I also, even though I'm adopted (from bulgaria, have the full name, most recent address (as ...
2
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0answers
46 views

Autosomal DNA Chromsome Browser - Is there such a thing as a 'family trait' of shared segments?

I realize the passing of genes is approximately 50/50 (reference Generational Loss of Data with DNA testing) with each generation and which genes are passed are commonly referred to as 'random' based ...
4
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1answer
147 views

What settings to use in GedMatch to confirm a seventh generation relative sharing DNA?

I have a relative, Nancy Ann Trigg, who is 7 generations removed from me, so I expect I have one part in 2^7 (128) of her DNA in my autosomal DNA test. I want to confirm this relation and found ...
4
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0answers
55 views

What does it mean for two DNA half-matches to not match each other?

I'm looking at my gedmatch.com kit A951428 and found close matches at the same overlapping location of chromosome 3: Kit Chr Start Pos End Pos cM SNPs F236166 3 25,435,600 ...
2
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1answer
84 views

How do I determine our common ancestor?

I'm trying to find a match for DNA that is narrowed down to go through my dad's line and another person's paternal line. I'm thinking if I could compare our fathers' pedigree surnames it might reveal ...
3
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1answer
76 views

How to read DNA matches across multiple related people to a 3rd party?

I have autosomal tests for myself, my sister, a cousin through my dad's sister, and my mother at Ancestry.com I have a third party that is matched to myself, my sister, and my mom, but not my cousin ...
6
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1answer
87 views

Template or Tool for Comparing Y-DNA Results

I am looking for a tool, preferably an excel template, I can run on my computer that I can use for comparing Y-DNA results across multiple types of Y-DNA tests. I realize some version of this exists ...
4
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1answer
59 views

Why doesn't the haplogroup K2b2 appear on MitoSearch.org?

I have a mtDNA test for my mom at FamilyTreeDNA.com and the results list her Haplogroup as being K2b2, however, when I go to publish a http://www.mitosearch.org/ entry, the available Haplogroup does ...
1
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0answers
110 views

Finding my Great-Grandfather when DNA test not conclusive?

I am from Japan and I have been trying to identify my great-grandfather who was British. For more background these are two questions that I have asked here previously: Finding UK record(s) of ...
5
votes
2answers
149 views

X DNA Interpretation

I guess I need a "dumbed down" explanation of these things, since I don't understand the explanations I've read. First, I have a 3rd cousin match from Ancestry who uploaded his info for me on ...
5
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3answers
188 views

Determining where particular parts of ethnicity percentage from DNA come from in family?

I completed a DNA test, and the results stated that I am 77% African 20% European 2% Native American and 1% Asian. From the results of this test, is there anything in the results that would tell me ...
2
votes
1answer
98 views

What would the starting shared cM number be for abnormally close relationships in Autosomal DNA test?

I have seen in the examination of family trees where individuals sharing a great grand parent marry and have children, somewhat commonly in pre-American Civil War, which I would think would create ...
4
votes
1answer
211 views

Is ancestry.com DNA test accurate with respect to native american descent?

Both myself and my wife believe we are descendants (each on the order of 1/16) of native americans, yet for the Ancestry.com autosomal DNA test, the ethnicity estimate shows nothing for native ...
2
votes
1answer
295 views

What is considered a strong match on a Big-Y DNA test?

I have done Big-Y on FamilyTreeDNA for a single individual and considering others as well as using the YFull interpretation service without fully understanding how to use it because I wanted to ...
2
votes
3answers
79 views

Forensic Y-STR DNA test provider that can provide results at greater than a Y-37?

I am trying to research a family line that shares a name, but not sure if anywhere in the distant or near past we share a common ancestor and both sides are interested in doing a Y-DNA test, we just ...
3
votes
1answer
290 views

Genetic Distance to Generations Calculation for Y-STR DNA tests

As a follow-up to the Q&A on Generational Loss of Data with DNA Testing, which described generational detail loss really well for Autosomal, I am now looking for a calculation or some basic ...
7
votes
1answer
152 views

How likely is it that ftDNA made a mistake about my y-haplogroup?

Context I bought a National Geographic Geno 2.0 kit, tested by FamilyTreeDNA, and it seems like I'm positively of the G2a haplogroup. This (statistically) disagrees with both where my recent ...
2
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0answers
76 views

How to test the relationship of two individuals?

My question is about ancestry/genealogy test. Suppose a genome service company, like 23andMe, extracts two people's genomic information. After that, how will the company test the relative ...
3
votes
3answers
7k views

How long do results typically take for Ancestry DNA test?

I ordered a family DNA test from Ancestry.com and sent it in for lab processing, they received it and the web page shows: Test in Process: Lab processing began on 02/26/2015 It is now four days ...
4
votes
2answers
2k views

How to interpret a reasonable X DNA Match, but no shared cM Autosomal result on GEDMatch?

I recently uploaded one of the Autosomal DNA results I manage to GEDMatch.com and ran the X-Match routine and came up with a puzzling result. The strongest result by far on the test has 37.2 shared ...
8
votes
2answers
435 views

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 ...
4
votes
2answers
180 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. ...
2
votes
2answers
157 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? I would like to know my ancestry (80% Scandinavian, 16% European, ...
2
votes
2answers
282 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 ...
7
votes
1answer
648 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 ...
3
votes
1answer
122 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?
4
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2answers
6k 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?
5
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1answer
966 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?
5
votes
1answer
608 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 ...
7
votes
1answer
2k 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 ...
7
votes
4answers
4k 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
40 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 ...
4
votes
2answers
151 views

Jacob FIsher and Sarah Hodges (married 7 Oct 1773 in Sharon, MA) - who were their childen?

Page 27 of the Sharon, Massachusetts Vital Records show Jacob Fisher and his wife Sarah had a son Jacob born 30 Apr 1776: Jacob, s. of Jacob and Sarah, Apr. 30, 1776 Page 94 of those records show a ...
8
votes
3answers
5k 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 ...
7
votes
1answer
213 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 ...
6
votes
3answers
193 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 ...
5
votes
1answer
75 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 ...
8
votes
1answer
275 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 ...
5
votes
2answers
104 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 ...
7
votes
2answers
207 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 ...
5
votes
3answers
128 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?
1
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0answers
150 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 ...
9
votes
2answers
166 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 ...
12
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1answer
3k 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. ...
14
votes
1answer
393 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 ...