Double First Cousins: More DNA = More Confusion?

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6 months ago
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Health & Science double first cousins first cousin DNA DNA match confusion genetic genealogy shared centimorgans DNA relationship explained how much DNA do cousins share genealogy DNA test understanding DNA matches double cousins vs first cousins

Think all first cousins share the same amount of DNA? Think again.

In this video, we’re tackling a surprising question from a viewer: Do double first cousins complicate DNA match results? Spoiler: They absolutely can.

You’ll learn:

What makes someone a double first cousin

How much DNA they typically share

Why they sometimes look like half-siblings in your match list

And how to tell them apart from regular cousins in your results

DNA doesn’t lie—but it can be confusing. Let’s untangle it together.

👇 Have a cousin match that’s making you scratch your head? Drop your questions in the comments!

↪️ Grab your FREE genealogy research guides and templates at https://www.familyhistoryfanatics.com/resources

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CHAPTERS

0:00 Introduction
0:20 How much DNA with Children of Double First Cousins?
1:45 Draw Out Double First Cousins
4:24 Will They Have Fully-Matched Regions?

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