Appendix




Degreesedit

Kinship Degree of
relationship 		Genetic
overlap
Inbred Strain not applicable 99%
Identical twins first-degree 100%
Full sibling first-degree 50% (2−1)
Parent first-degree 50% (2−1)
Child first-degree 50% (2−1)
Half-sibling second-degree 25% (2−2)
3/4 siblings or sibling-cousin second-degree 37.5% (3⋅2−3)
Grandparent second-degree 25% (2−2)
Grandchild second-degree 25% (2−2)
Aunt/uncle second-degree 25% (2−2)
Niece/nephew second-degree 25% (2−2)
Half-aunt/half-uncle third-degree 12.5% (2−3)
Half-niece/half-nephew third-degree 12.5% (2−3)
Great grandparent third-degree 12.5% (2−3)
Great grandchild third-degree 12.5% (2−3)
Great aunt/great uncle third-degree 12.5% (2−3)
Great niece/great nephew third-degree 12.5% (2−3)
First cousin third-degree 12.5% (2−3)
Double first cousin second-degree 25% (2−2)
Half-first cousin fourth-degree 6.25% (2−4)
First cousin once removed fourth-degree 6.25% (2−4)
Second cousin fifth-degree 3.125% (2−5)
Double second cousin fourth-degree 6.25% (2−4)
Triple second cousin fourth-degree 9.375% (3⋅2−5)
Quadruple second cousin third-degree 12.5% (2−3)
Third cousin seventh-degree 0.781% (2−7)
Fourth cousin ninth-degree 0.20% (2−9)

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