A Y-STR is a short tandem repeat (STR) on the Y chromosome. Y-STRs are often designated by DYS numbers.

Y-STRs are often used in genealogical DNA testing.

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This page uses content from the English language Wikipedia. The original content was at Y-STR. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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