Third-degree relative

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Third-degree relatives constitute a category of family members that constitutes a segment of the extended family and includes first cousins, great grandparents and great grandchildren.[1] The term is most commonly used in reference to the amount of genetic overlap that exists between two sets of people, with third-degree relatives sharing approximately 12.5% of their genes.[2]

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References[edit]

  1. ^ "First, Second and Third Degree Relative". bcbst.com. Blue Cross Blue Shield of Tennessee. Retrieved 18 August 2016. 
  2. ^ Ludman, Mark (2009). The Encyclopedia of Genetic Disorders and Birth Defects. p. 101.