A second-degree relative (SDR) is someone who shares 25% of a person's genes. It includes uncles, aunts, nephews, nieces, grandparents, grandchildren, half-siblings, and double cousins.[1][2][3]
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See also
References
- ^ "Breast and Ovarian Cancer and Family History Risk Categories". Center for Disease Control.
- ^ "First, Second and Third Degree Relative". Blue Cross Blue Shield.
- ^ "NCI Dictionary of Genetics Terms". Cancer.gov.
This page was last edited on 24 April 2022, at 04:37