Questions tagged [autosomal-dna]

For questions about autosomal DNA testing for genealogical purposes. Autosomal DNA is the majority of the DNA in our chromosomes, and is passed by both mother and father to child. This includes tests provided by AncestryDNA, 23andMe, and FamilyTreeDNA's FamilyFinder.

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73 views

Half brother Or someone else?

I was given an AncestryDNA test as a Christmas gift and I took the test. I was matched with several people that I didn’t know but I assumed they were people on my dad’s side who I knew absolutely ...
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My close family dna match

On ancestry.com my first to second cousin match is my supposed first cousin but him and I share 841 CM across 46 segments is he my cousin or my half nephew and do I possibly have a half sibling?
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Explaining older sister sharing 1,961 cM as close family or 1st cousin

My older sister came back "close family-first cousin". What does this mean? Shared DNA 1961 cM across 74 segments
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86 views

Matching less than 6cM on Ancestry but almost 15cM at GEDmatch

I am communicating with someone who appears to be a 5th cousin once removed. According to AncestryDNA my cousin shares 10cM across 1 segment with my paternal uncle, but is not a match to me (at least ...
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57 views

Can 1,782 cM shared indicate Half Siblings? [duplicate]

Could a person with 1,782 cM actually be my half-sibling? This person is listed as close family to me, yet I do not know them. My cM is the same as this person's. I do have 6 paternal half ...
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134 views

How can a 3rd Cousin be a DNA match to my mother AND my father’s side?

On Ancestry I have a match at the 3rd cousin level and we have common matches with both my mother and fathers side. New to this and that is confusing to me. Sorry if I am missing something obvious!
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231 views

Child of possible incest

My sisters, two aunts and several cousins (on maternal side) did the 23 and me DNA test. One of my aunts (the younger one) showed up as a half sister to me (we share 1,942 cM and 44 segments) and my ...
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116 views

Understanding 1,537cM match to person and 1,950cM match to their uncle

I have a match with a female that is a few years younger than me (she is in the 60s). She and I match at 1,537 cM across 47 segments. Her Uncle (Paternal Uncle, as far as I know) is a match with me ...
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65 views

Adopted 1st cousin match possible secret sibling?

An unknown woman matches: me with 1045cM my aunt (my father's sister #1) with 1952cM one of my 1st cousins (from my father's sister #2) with 998cM. My father has one other sibling: a brother who has ...
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90 views

Can a DNA match of 1967cM across 72 segments be a first cousin?

My husband had DNA testing through Ancestry. A woman of about the same age shares 973 cM across 45 segments. We determined that she was probably a first cousin; a child of my husband’s paternal ...
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How to completely upload an “Everything” kit created from Dante Labs to GEDmatch?

I have Dante Labs WGS kit for which, using WGS Extract, I created an everything kit for GEDmatch. When I uploaded it as other since Dante Labs is not an option, it was identified as being "23andMe ...
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58 views

Understanding Ancestry DNA match of 1,668 cM [closed]

Can someone help me to understand an Ancestry DNA match of 1,668 centimorgans shared across 52 DNA segment?
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1answer
57 views

X-DNA and Half Sister

I am a female. Another female and I have come up as sharing 1915 cM's and when we do the one to one X-DNA on GED Match, if we click on "prevent hard breaks", we have a straight blue line across the ...
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44 views

Have I found both biological parents, one biological parent or should I keep looking?

My husband's mother was adopted without any records (1910 NYC). I located her biological paternal family along with several possible brothers through DNA. I cannot locate her biological maternal ...
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2answers
62 views

Understanding shared DNA of 1,576 cM with great nephew

I had my DNA tested through Ancestry. About a year ago, my great nephew (I'll call him GN-1) whom I raised had his tested. The match came up Close Family–1st Cousin Shared DNA: 1,576 cM across 69 ...
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59 views

Might 3.46% American Native DNA come from 10 generations back?

If DNA shows 3.46% American Native, then how far back in generations did it come from? I am told it was from a 10 generations back.
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54 views

Does 439 cM shared suggest half uncle rather than half first cousin?

I am trying to determine if my half sister had a different father than the one she grew up with. I was given a name of who the father could be. He has passed away but his son took a DNA test on ...
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False-Positives in Autosomal DNA Matches

I have spent a significant amount of time and effort beating my head on brickwalls that appear when tracking Ancestry Autosomal DNA matches. I've had success in establishing document trails with ...
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2answers
102 views

Intrepretation of DNA detectable relationships

While quite a number of questions have been asked and answered regarding DNA and relationships, I'm not certain that this question has been asked. I have a 5th cousin that has been identified by ...
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1answer
65 views

Unlinking Tree & DNA on Ancestry

I have my Ancestry DNA results linked to my Tree. If I choose to unlink, link to a different person or different tree will I lose any of my notes, groups etc? I assume not, but thought it best to ...
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109 views

Interpreting ethnicity from DNA testing

Ancestry DNA testing confirmed that I am 23% Chinese. My mother has no Chinese DNA. My fathers mother has no Chinese DNA. Does that mean my father is 50% Chinese and his father is 100% Chinese? ...
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1answer
68 views

Does 866 cM shared suggest half aunt rather than aunt?

There is a joke in my family that my father's father is not his biological father. He only has sisters and his father is dead, so there's no possibility of a true test. But I'm his daughter and I did ...
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1answer
78 views

Evaluating half sibling using AncestryDNA?

Recently we (two full sisters and a full brother) think we may have found a half brother who is 50 years old on Ancestry DNA, where he is being categorized as Close Family-First Cousin. sister 52yr ...
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69 views

Could DNA matches of 1,591 and 1,773 cM be half siblings of person tested?

I recently received my DNA match from Ancestry,and I share 1,591 centimorgans across 53 segments with one and 1,773 centimorgans across 58 segments with another. Could these people be half siblings?...
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62 views

Aunt or Half Sibling?

We tested a potential Aunt for my husband and the results came back 1992 Cm. We know this falls into the range we expected however, I immediately realized she has matches that she doesn't share with ...
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1answer
69 views

DNA/Half-Sibling or First Cousin, Based on Fairly High Shared cMs

Brand new at this and don't have good grip yet on cMs ranges for relationships, especially when number falls in between stated ranges for relationships. Both my dad and I have taken DNA tests from 23 ...
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40 views

Understanding first cousin and grandson/grandfather relationships at 23andMe

I have 2 first cousin matches on 23andme.. both named ‘John’. Their relationship is listed as grandson/grandfather. With that age difference and relationship they both cannot be my cousin. I’m adopted ...
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3answers
100 views

Half Siblings and DNA Matching

My sister and I are half-siblings. We have always know this and my mother reportedly had an affair during WW2. This was confirmed with ancestry DNA as we only share 1603cM. I'm trying to filter out ...
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62 views

2nd cousins. One 4%, one 8%?

I’ve recently been matched to two second cousins by DNA. However one shows a 4% match and the other one shows an 8% match. One is on my father’s side and one is on my mother’s side. Why, or how is ...
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2answers
149 views

Finding maternal grandfather using AncestryDNA and GEDmatch

I have my DNA and my mom's DNA on Ancestry and Gedmatch. My mom was adopted. I got her original birth certificate from Kansas and found her birth mom's family (birth mom was deceased) but the man ...
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57 views

Analysing relationships using autosomal DNA

I (A) am 1095 cm's from a known cousin (M). I (A) am 1224 cm's from an unknown person (S) My cousin (M) is 1458 cm's from the unknown person (S). I (A) am described as a Cousin to (S) (M) is ...
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138 views

How could I be 10% French when there's no French in my mother or father's DNA results?

Ancestry DNA says I'm 10% French. My father never got tested, but my half sister and cousin on my father's side (who were both identified by the site) both tested as 100% European Jewish. My ...
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104 views

Understanding shared match of 1,177 cM?

I recently received a "DNA Match" on my account to some one who shows 1,177 cM shared. I am trying to understand what this is really telling me. This is important to me as I do not know who my ...
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93 views

Understanding 1,102 shared centimorgans?

I took an AncestryDNA test and have matched with a new relative JP. She and I share 1836cM. She’s not my half sister. She’s not my grandparent. She could be my father’s half sister. With this amount ...
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85 views

Does age factor in when calculating relationship on DNA match

A result of 193 cm from 100 year old, matched up to a 35 yo. Does the age of the participants factor in? The sample also showed cross match. The relationship is estimated at 2nd to 3rd cousins. Does ...
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21 views

Does 1,517 shared cM indicate half-siblings? [duplicate]

My husband has a close family match of 1,517cM across 61 segments and his niece shares 906 cM across 40 segments. Is there a chance this is a half brother to my husband and half uncle to his niece? ...
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102 views

Can 419 and 468 shared cM indicate first cousins?

I was adopted and have known my birth family for many years. I just did a DNA test and found I have 702 matching cM's with the daughter of my mother's brother (making her my 1st cousin). This helps ...
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18 views

Does 1,427 shared cM indicate half-siblings? [duplicate]

I share 1427cm 54 segments with a close family to 1st cousins with a probability of 93.7% to grandparent, aunt uncle or half sibling. All of my info is that he is related on my maternal side, ...
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156 views

Identical twins DNA numbers (centiMorgans/cMs)

Are identical twins DNA numbers (centiMorgans/cMs) less from grandparents because they are identical twins?
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68 views

Does match sharing 952 cM indicate grandparent or great uncle?

My mother was adopted and we are trying to find the parents. I have a DNA match that is 952cM and 38 DNA segments. What is the chance of this being my grandparent? It says 1st cousin and we know ...
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70 views

Does sharing 1,249cM indicate half sibling?

My husband was raised by his older half brother. We have been told throughout the years that he is actually my husband father.We ran an ancestry test with his daughter. Results were sharing 1249cm ...
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72 views

Placing adoptee in family tree when What Are The Odds cannot help?

I am trying to figure out where an adoptee fits in my family tree. I know he are is related on his paternal side, since his maternal side has been identified and is not related to my family. I have ...
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372 views

Ancestors missing from ThruLines?

At AncestryDNA, until a few days or so ago, all my expected direct ancestors were listed correctly by ThruLines. Now when I look at them some of them have gone missing. For example, today I can only ...
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145 views

Family Networks at Living DNA tells me to Keep Fishing?

Late last year (8 months ago) I accepted an offer via FindMyPast to upload my AncestryDNA results to Living DNA. Three months later I followed the instructions in an email from Living DNA to opt-into ...
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56 views

Using AncestryDNA to work out whether mother or father is parent of half sibling?

How do I work out from viewing my shared matches on AncestryDNA which one of my parents is the parent of my half sibling?
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24 views

Does 1,957 centimorgans indicate half-siblings? [duplicate]

I have recently had a DNA test and have a shared match of 1957 over 50 segments with one of the matches. They are not interested at the moment in communicating. I was brought up as an only child, so ...
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1answer
146 views

Understanding double cousins?

I’ve been trying to find out the identity of my grandfather for quite some time and recently, new DNA matches have meant it easier for me to narrow it down. I have 3 matches that are all descendants ...
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1answer
81 views

Distinguishing grandparent from uncle for 1,768 cM match?

Ancestry DNA says: Predicted relationship: Close Family–1st Cousin Shared DNA: 1,768 cM across 68 segments But how does it distinguish between an uncle and a grandparent? It appears that the ...
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2answers
141 views

Does 1,864 centimorgans indicate half-siblings? [duplicate]

My sister, daughter and I all took DNA tests for fun. My sister and I show up on Ancestry as "close family," and share 1864 Centimorgans, and we do not share any relatives that my daughter and I share ...
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85 views

Calculating segment cM from 23andMe matches?

Going through my list of matches I'm working on a triangulation analysis. (Such that if person A matches from position 10-15 and person B matches from position 10-13 I can break out position 10-13=A&...

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