How to read DNA matches across multiple related people to a 3rd party?

How do you cluster DNA matches on Ancestry?

As I mentioned above, to cluster your Ancestry DNA matches is simply to sort your matches into groups of people who are possible related to each other in the same way. Then, you will research the family trees, when available, of each DNA match in each cluster in order to determine a shared ancestor.

How do I interpret AncestryDNA matches?

To determine your AncestryDNA Matches, Ancestry® compares your DNA to the DNA of every other person in the AncestryDNA database. Based on how your DNA matches up, Ancestry estimates how closely you’re related—or if you’re related at all (see Figure 1).

How do you read DNA segments?


Quote from video: So the first line in each chromosome represented in red are the shared segments you have with Robert.

What does 3 DNA match mean?

When you compare multiple DNA Matches, you might encounter triangulated segments: segments of DNA that all 3 (or more) of you have in common. If you have a triangulated segment with a known relative and a mystery DNA Match, that means that all of you likely share a common ancestor.

What do blue dots mean on Ancestry?

Unviewed: matches that have blue dot beside them, which means you haven’t viewed them. Common ancestors: matches who have an ancestor listed in your tree that you have listed in yours. Your tree must be linked to your DNA test in order to see your common ancestors.

How do you do Leeds method on Ancestry?

Leeds Method for Organizing DNA Matches

  1. To use the Leeds Method, create a list of your 2nd and 3rd cousin matches. …
  2. Pick a color and fill in the space next to the first match on your list.
  3. Using the Shared Matches tool, find the other matches in your match list who share DNA with that first one.

What does 2nd cousin mean on Ancestry?

“Second cousins” means that the closest common ancestor is a great-grandparent. Third cousins, then, have a great-great-grandparent as their most recent common ancestor.

What does close family 1st cousin mean on Ancestry?

Close Family – First Cousin



Shared centimorgan range: 1,300–2,200 centimorgans. Degrees of separation: 2–4. Possible relationships: Aunt or uncle. Great-grandparent or great-grandchild.

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