Uploaded January 2023 | Updated September 2026, 16 hours ago

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A viewer asked whether double first cousins complicate DNA matches, and the answer is yes. This video explains these genetic relationships.
😟 Tree Collapse & Endogamy in DNA 👉🏼youtu.be/Wlq_a-gdf9k

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CONTINUE LEARNING

📺 How a Male Ancestor With Multiple Partners Complicates DNA Results youtube.com/watch?v=NOVCQHhheRg&list=PLcVx-GSCjcdkg_EK_u2axM6q6bCDO8yO3
📺 Does Ancestor's Sex Affect How Much DNA You Share With Matches? youtu.be/hOeDYG5jB00


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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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