Table 1.

Simulated relationship types for each degree of relatedness.

Degree	Relationships
1	Full siblings
2	Avuncular, Half-siblings
3	First cousins, Half avuncular
4	First cousins once removed, Half first cousins
5	Second cousins, Half first cousins once removed
6	Second cousins once removed, Half second cousins
7	Third cousins, Half second cousin once removed

Half relatives share only 1 common ancestor while other types have two common ancestors.