Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

2
votes
1answer
33 views

Determining if 1,814cM match from AncestryDNA is Half Sibling?

My son recently had a match come up as close family the match is male and 1814cm. His only living grandfather is already in our tree at 1857cm. All other grandparents are deceased and have never ...
2
votes
1answer
95 views

Visualising genetic distance information from personal genetics sites

I've been using 23andme.com it shows me a comparison with genetic relatives and lists our common relatives. I have over 1000 3rd, 4th and distant cousins on 23andme. Is there are way to make a ...
0
votes
1answer
43 views

Stacking DNA and trees?

Is there a software program i can download that i can then input every family members DNA into and also my heritage and ancestry tree into to create a combined one? One that can show me duplicates, ...
3
votes
0answers
83 views

Looking for 3rd cousins among 4th cousin matches

So I was wondering if its possible in any way to get a hint if someone showing as a 4th cousin match could be a 3rd cousin? From my understanding you can't, but I want to ask if anyone has done this ...
2
votes
0answers
52 views

Interpreting runs of homozygosity data to determine how closely parents were related?

According to Gedmatch's Are your parents related? tool, my grandmother's DNA shows several runs of homozygosity (ROH): Chr Start Location End Location Centimorgans (cM) SNPs 3 180690286 ...
2
votes
0answers
34 views

Using Collaborator status of AncestryDNA to see tree owner's shared matches to one of their matches?

At AncestryDNA, about two months ago, my sister set me as a Collaborator on her DNA test which is linked to my tree, and I just checked to see that I still have that Collaborator status, and as far as ...
2
votes
0answers
434 views

Is the relationship an aunt /niece or half sister to my mother?

I am a genetics beginner: A little back story: My mother was adopted at birth. She found her birth mother and siblings back in the 90s. The birth mother was deceased at the time, and we also ...
2
votes
0answers
333 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 ...
1
vote
0answers
59 views

Dealing with sibling surprise?

My Husband's DNA through Ancestry.com shows his first match at 1922cm's over 45 segments. This person has a small tree (750 names) going back about 4 generations. My husband also matches 5 other ...
1
vote
0answers
35 views

Missing expected Norwegian ethnicity in Family Tree atDNA results?

I just received my Family Tree atDNA results which show 97% British Isles. This seems to be a major error because it shows my Dad's lineage (BI) but completely leaves out my mother’s lineage which is ...
1
vote
0answers
622 views

Understanding Native American DNA at gedmatch.com?

How come gedmatch.com shows my alleged Native American DNA, but ancestry.com, FTDNA.com and 23andme.com does not? Does anyone know why that is? What is the difference between gedmatch database and ...
0
votes
0answers
33 views

Combining sibling DNA data for easier research

I have DNA from four of my siblings (they were tested at three different places). I'd like to find a way of easily combining our raw DNA data into two files -- even if the files weren't sorted by our ...
0
votes
0answers
44 views

Half siblings or double cousins?

MB= my brother (1/2 sibling) MC=cousin (our mother's sister's daughter given up for adoption-no longer married to SS) DC=cousin to both of us but either 1/2 sibling to my brother or double cousin) AS= ...