Uploaded May 2026 | Updated September 2026, 5 hours ago

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In this video, Andy breaks down the DNA science behind 3/4 siblings and double first cousins to solve the mystery of why your cousin might look like a sibling on your match list.

🤔 Do Double First Cousins Have the Same DNA as First Cousins? 👉🏼youtu.be/nWK_HcoWaBo

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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
📺 Why Doesn't a DNA Match Match Any Other Relatives? | Genetic Genealogy youtube.com/watch?v=UkDtca20dUs&list=PLcVx-GSCjcdmsw25mbI-wJin_9_9QQUzI

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