Table 1.
IBD sharing probabilities for different relations in absence of inbreeding
| Relatedness | |||
|---|---|---|---|
| Unrelated | 1 | 0 | 0 |
| 3rd degree | 0.75 | 0.25 | 0 |
| 2nd degree | 0.5 | 0.5 | 0 |
| Siblings | 0.25 | 0.5 | 0.25 |
| Parent–child | 0 | 1 | 0 |
| Identical/twins | 0 | 0 | 1 |
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