What is a Centimorgan? | Centimorgans Explained

What is a centimorgan? When you take a DNA test for finding birth relatives or family history, your DNA match list includes your shared centimorgans (cM). That number of centimorgans can help you figure out how you are related to your DNA matches. Your DNA Guide Diahan Southard explains what you need to know.

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Your DNA Guide—the Book by Diahan Southard. The ultimate do-it-yourself manual for using DNA to explore your genetic origins: https://www.yourdnaguide.com/your-dna-guide-the-book

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