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DNA Q&A: All About DNA Mapping and Ethnicity Estimates

DNA mapping and ethnicity estimates are a big draw of home DNA test kits. Learn more about them here.

Use DNA test results to learn about your health. Here's how the four major DNA health tests compare: 23andMe, AncestryDNA,…

When it comes to DNA tests, privacy is sometimes a concern. DNA expert Diahan Southard weighs in.