Questions tagged [relationship-analysis]

For questions about determining or interpreting familial relationships.

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56 views

Using DNA to find biological father

I have done both 23 & me and Ancestry trying to gets leads on who in the world my birth father could be. My mom truly can’t recall. I found a first cousin or potential great aunt I think. She ...
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1answer
39 views

Making sense of low DNA match for half-siblings

My DNA match on Ancestry was thought to be my half sister. After my test came back, 713 cMs across 20 segments, 10% shared DNA, longest segment 136, that says my Grandfather would be her father, but ...
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72 views

How do Genetic Percentages in Common Compare to Possible Familial Relationships?

I recently was contacted about a deceased half-sister who is 11 years older than me. I did a 23AndMe test, and it shows us as 1st cousins with 13.57% shared DNA. An adoption agency lists my mother as ...
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35 views

Understanding DNA match of 2,559cM to grandparent

I received my DNA results from Ancestry. My first DNA match ended up being my paternal grandpa. We shared 37 percent of our DNA and 2559cm. If that seems high, what could be causing so strong of a ...
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27 views

Can a person confirm paternity by results of a DNA matching service to the father's distant relative?

I am trying to find a way to confirm that the man listed on my birth certificate is my father or not (hopefully not). I have some obstacles, of course, one is that he died in 2011. We were not close (...
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27 views

Would half siblings share the same DNA links to extended family

I've matched with either a half sibling\aunt or niece on MyHeritage - we chatted and it seems like we share the same father. However, I have links to a 1st cousin once removed or second cousin, for ...
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32 views

What is the relationship based on shared DNA

We are trying to find out information regarding my mothers biological father side of the family. My mom was adopted in 1945 and later in life discovered her biological mother but not her biological ...
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31 views

How common is it to be related to another person in at least two different ways?

While exploring my genealogy, I found out that I am related to my best friend Nate via 2 different genetic routes. But a little more backstory. I was born in Texas, spent my younger years in Minnesota,...
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64 views

Distinguishing half siblings from first cousins (possible fathers are brothers) using shared cM

Regarding half siblings, sent my DNA to Ancestry came to a match of half sibling at 1530 cMs @ 99% half sibling however was in contact with such match and he is claiming my father or one his two ...
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17 views

Unknown dna match [duplicate]

I’m new here and I just found out who my biological father was. Why I’m here is on ancestry.com a new dna match came up with 1,012 centimorgans with 36 segments longest segment is 100 centimorgans. ...
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12 views

Determining AncestryDNA Match relationship [duplicate]

I had my DNA tested through Ancestry.com. My closest match shares 2041cm. Is it safe to say this is probably a half-sibling? Are other ways of confirming this relationship?
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30 views

Matching one cousin more than double their sibling

I have a 1883 cM match with my first cousin. I have a 762 match with his brother, and a 4462 match with my sister. Is there an explanation?
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64 views

2nd cousin showing up as DNA match

I recently discovered I shared a DNA match with a lady of 341cMs of whom I don’t know. I’ve since made contact with her and some missing gaps discovered. She has a half sibling (1972cm) - brother , (...
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2answers
101 views

Understanding DNA match of 1,723 cM

I have a DNA match of 1,723 cM with a male 6 years younger than me. His father is one of a twin, could my match be not my half-sibling but my 1st cousin.
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2answers
5k views

Sharing 52% DNA with mother

I received my 23 and me results and it says I share 52% DNA with my mom. Is this possible?
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1answer
54 views

Understanding relationship with Shared DNA of 1,501 cM across 50 segments [duplicate]

My husband and I recently did AncestryDNA. He came back with a DNA match (shared with his mother) that simply says "close relative". He has no idea who this person is, and his mother claims ...
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1answer
87 views

Half Uncle possibility -fathers side

I recently conducted a DNA test on ancestry.com and I received a strong match with a guy I don’t know . 758cms across 23 segments longest segment 86cm. He is 57 years of age and my father is 70 and i ...
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41 views

ALL 23andme matches link via one grandparent?

I have spent hours today looking at my 23andme DNA matches, and while I have not checked every single one, it seems to me that ALL of them descend from ancestors of my paternal grandmother. I am 100% ...
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1answer
63 views

2 unknown grand fathers

I have known for a long time that my fathers father is unknown. Unfortunately, I have learned that my mothers father is unknown also. I have recently received my DNA results but the nearest match is ...
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1answer
39 views

Does DNA match of 1,781 cM suggest half siblings? [duplicate]

I have been contacted by someone who says we are half sisters due to our DNA match. Our DNA is 1,781 which apparently is a high match. Would this make us half sisters? I am an only child and she is ...
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2answers
191 views

Why do I only share 360 Centimorgans with my 1st cousin?

I have taken a closer look at the info on my 23andMe match with my known 1st cousin. It says we share 360 Centimorgans, and the Centimorgan charts I've looked at suggest this is potentially outside ...
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1answer
23 views

Is 1,147 cM match for half sibling or cousin

I have an 855 cM match with a mystery 1st-2nd cousin. My cousin has an 1,147 cM match to the same mystery cousin. Is it possible the 1,147 cM match could be a half sibling?
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2answers
166 views

Determine family from obituary

I have a very poorly set up obituary and I need to determine who the 7 children and their families are, but the the way it is laid out and the punctuation are making this quite difficult for me. The ...
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3answers
148 views

How can two different generations of one family be a half sibling to an outsider?

My full paternal uncle and I enough cM with an outsider to both be listed as half siblings to an unknown male. My uncle shares more cM with that unknown male than I do (a female). Both my uncle and I ...
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2answers
119 views

23andme shows a man as my dad's cousin, but ancestry.com shows him as my dad's brother

I did 23andme, and so did our mystery man. Two of my grandfather's brothers also did 23andme, as well as a number of the kids and grandkids of my grandfather's brothers and sisters (my grandfather ...
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1answer
61 views

What is the cut off for a half-sibling and first cousin in CM's?

I am adopted and was searching for my birth family and found a cousin and since then I had someone in the family helping me with the search. I found someone who I think is my half-sibling. She did a ...
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1answer
91 views

Trying to narrow down biological grandfather

I have been working on finding my biological grandfather. The closest DNA match I have to my father (who has taken a test) is 1015cM. I've narrowed down his father to either her father or her uncle. ...
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1answer
62 views

Can 2,025 cM shared indicate full Siblings?

My brother and I did ancestry tests at different times. We had 2,025cM over 39 segments. Longest one was 158. As I looked at our matches all I could see was my moms side of the family. It was saying ...
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1answer
88 views

Mapping DNA relationships on paper

I have recently started digging into my DNA matches. I have several closely related matches. I was born in Montana and my grandma was married to a man who has no biological relationship to me. However ...
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2answers
83 views

Determining relationship to cousin solely based on mutual relationships to other cousins

Background I am researching genealogy on 23andMe.com, trying to find new cousins and determine their relationships to me. All the site gives me is a list of people and their predicted cousin-...
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1answer
161 views

Understanding daughter's 314 centimorgans with half nephew

My daughter just learned she shared 314 centimorgans with a boy we believed was her half brothers son. I have just sent in my sample as the supposed father of her 50 year old half brother. We are all ...
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0answers
58 views

Can niece not connect to my paternal line but her daughter connects to my maternal and paternal side?

My niece is a dna match 2112 cM over 80 segments. She only matches on my maternal side of the family. Her daughter is a dna match of 1118 cM over 46 segments. She matches both my maternal and paternal ...
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0answers
418 views

Incest and Shared CentiMorgan Theory. Half/Full Sibling and a Single Transverse Palmar Crease

My female ‘half sibling?’ and I, also female, share 2,129 cM. We DO NOT share the same father. DNA testing revealed that conclusively. Ancestry puts us into Close Family/1st Cousin. DNA painter ...
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1answer
81 views

9 of my top 11 DNA matches (three generations) show the category of 1st -2nd cousin

I am trying to find my biological father. I believe he is one of 5 brothers and am ALMOST sure of which one. My top 11 DNA matches (all relatives of those 5 brothers) state 1st - 2nd Cousin, however,...
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2answers
101 views

Do father and mother pass on same DNA to half siblings?

I grew up in a household with half siblings. Same mother different fathers. I grew up never knowing who my dad was. As I got older I started to ask questions. My mother would push back with resistance....
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2answers
99 views

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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1answer
67 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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2answers
577 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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1answer
698 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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1answer
296 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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1answer
96 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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2answers
141 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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1answer
120 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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1answer
226 views

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
111 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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2answers
115 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
98 views

Does 866 cM shared suggest half aunt rather than aunt? [duplicate]

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
160 views

Evaluating half sibling using AncestryDNA? [duplicate]

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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1answer
128 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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1answer
62 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 ...