Uploaded May 2026 | Updated September 2026, 2 hours ago
Why would two DNA matches share the exact same segment… but not match each other?
In this video, Andy from Family History Fanatics tackles a real DNA question involving:
- Identical start and end coordinates
- No triangulation in the chromosome browser
- And confusing match relationships on the same segment
If you’ve ever wondered why your DNA results don’t always behave the way you expect, this explanation will help you understand what’s really going on behind the scenes. We break down how DNA segments, triangulation, and testing differences can create situations that look impossible—but actually aren’t.
***
This example comes from one of our live DNA Q&A sessions, where we break down real questions from our community.
👉 Watch the full Q&A session here: youtube.com/live/1r-lv0ZlWqI?feature=share
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CONTINUE LEARNING
📺 Do Chromosome Segment End Points Matter? | Genetic Genealogy Explained youtu.be/3vWBeFUBVdg
📺 MyHeritage DNA: How to Triangulate DNA Matches in Genetic Genealogy youtu.be/FcrPJgab3q8
📺 How to Use GEDmatch One-to-Many Matching youtu.be/DbGF7bdouE0
↪️ Grab your FREE genealogy research guides and templates at familyhistoryfanatics.com/resources
⚡ Want to grow your family tree faster? Join our membership program.
youtube.com/channel/UCmkKepHoafldMRZ4UNt0Akw/join
📗 Like to read? Check out these books
familyhistoryfanatics.com/books
----------------
✅ Let's connect:
✔️ Subscribe for more genealogy tips: tinyurl.com/FHFanaticsYouTube
✔️ Website: familyhistoryfanatics.com
✔️ Share Video Ideas: familyhistoryfanatics.com/contact
This video is a part of a series of genealogy research tutorials to help viewers to build their family tree or expand their family history research. Subscribe to our channel if you love genealogy like we do!
#FamilyHistoryFanatics #genealogy #geneticgenealogy
Why would two DNA matches share the exact same segment… but not match each other?
In this video, Andy from Family History Fanatics tackles a real DNA question involving:
- Identical start and end coordinates
- No triangulation in the chromosome browser
- And confusing match relationships on the same segment
If you’ve ever wondered why your DNA results don’t always behave the way you expect, this explanation will help you understand what’s really going on behind the scenes. We break down how DNA segments, triangulation, and testing differences can create situations that look impossible—but actually aren’t.
***
This example comes from one of our live DNA Q&A sessions, where we break down real questions from our community.
👉 Watch the full Q&A session here: youtube.com/live/1r-lv0ZlWqI?feature=share
----------------
CONTINUE LEARNING
📺 Do Chromosome Segment End Points Matter? | Genetic Genealogy Explained youtu.be/3vWBeFUBVdg
📺 MyHeritage DNA: How to Triangulate DNA Matches in Genetic Genealogy youtu.be/FcrPJgab3q8
📺 How to Use GEDmatch One-to-Many Matching youtu.be/DbGF7bdouE0
↪️ Grab your FREE genealogy research guides and templates at familyhistoryfanatics.com/resources
⚡ Want to grow your family tree faster? Join our membership program.
youtube.com/channel/UCmkKepHoafldMRZ4UNt0Akw/join
📗 Like to read? Check out these books
familyhistoryfanatics.com/books
----------------
✅ Let's connect:
✔️ Subscribe for more genealogy tips: tinyurl.com/FHFanaticsYouTube
✔️ Website: familyhistoryfanatics.com
✔️ Share Video Ideas: familyhistoryfanatics.com/contact
This video is a part of a series of genealogy research tutorials to help viewers to build their family tree or expand their family history research. Subscribe to our channel if you love genealogy like we do!
#FamilyHistoryFanatics #genealogy #geneticgenealogy
