chromosome browsers – Family Locket

Why Don’t the Segments Triangulate?

May 15, 2022

Have you ever used the MyHeritage chromosome browser to view triangulated segments? It’s a wonderful tool. A member of the Research Like a Pro with DNA study group asked a great question about his experience using it. He said, I’ve compared the DNA of 3 people with my mom: Bob, my mom’s 1st cousin on her dad’s side two DNA cousins I’m researching, Jane and Jill (names changed) Bob triangulates with Jane on chromosome 15. Jane triangulates with Jill on the same segment on chromosome 15. Bob does NOT triangulate with Jill on chromosome 15. Shouldn’t Jill and Bob...

Native American DNA by Roberta Estes – Favorite RootsTech 2020 Class

Apr 18, 2020

Many Americans have been told by relatives that they have Native American ancestry and want to find out if the story is accurate. DNA testing has the capability to help people determine if they inherited any DNA from Native American ancestors. At RootsTech 2020, I attended a class taught by DNA expert Roberta Estes entitled “Native American DNA: Confirming Those Stories.” I am sharing some of the helpful information from Roberta’s class and including links to her website, DNAeXplained, for more information. Her lecture was my favorite class from Rootstech 2020 because she has so much experience about this topic...

RLP 70 – DNA Tools and Methodology part 2: Chromosome browsers, segment triangulation, chromosome mapping, visual phasing

Nov 11, 2019

Today’s episode of Research Like a Pro is a discussion with Robin Wirthlin about DNA tools and methods involving segment data. AncestryDNA doesn’t provide segment data, but the other companies do! With chromosome browsers and segment data, you can use segment triangulation and chromosome mapping to prove common ancestors. Join us as we talk about how this all works! Links The Chromosome Browser: A Tool for Visualizing Segment Data by Nicole at Family Locket Segment Triangulation by Diana at Family Locket Chromosome Mapping – Visualize Your DNA and Identify the Ancestors Who Passed It On To You by Robin at...

Segment Triangulation: Proving an Ancestral Line

Aug 9, 2019

Have you heard the term “segment triangulation” associated with DNA and wondered what that meant? Perhaps you wondered if this could help you confirm an ancestor that you’ve researched? Which DNA testing and third-party companies offer this tool? In this article, I’ll define the term and show how the process can help you in your genealogy journey of discovering your genetic family tree. Pedigree Triangulation I previously wrote about pedigree triangulation and used the following visual from the ISOGG Wiki page to explain the concept. You and your DNA match both received DNA from your Most Common Recent Ancestor (MRCA). In...

The Chromosome Browser: A Tool for Visualizing Segment Data

Aug 4, 2019

For most of us, the goal of genetic genealogy is to identify how our DNA matches are related to us. We want to determine our common ancestor or identify an ancestor who was previously unknown to us. Chromosome browsers help us do that. By determining that an autosomal DNA segment was inherited from a certain ancestor, we can use that segment information in the future to identify matches whose connection to us is unknown. Chromosome browsers also help us triangulate segments of DNA data shared with 2 or more genetic matches. When segment triangulation is achieved, we are able to...

Why Don’t the Segments Triangulate?

Native American DNA by Roberta Estes – Favorite RootsTech 2020 Class

RLP 70 – DNA Tools and Methodology part 2: Chromosome browsers, segment triangulation, chromosome mapping, visual phasing

Segment Triangulation: Proving an Ancestral Line

The Chromosome Browser: A Tool for Visualizing Segment Data

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