Id |Name |Sex |Mother|Father|Proband|Type |Comment A0 |John |male | | | | | B1 |James |male | |A0 | | | B1c|#childless |male | |B1 | |infertile |anospermia B2 |Ann |female| |A0 |yes | | B2c|#childless | |B2 | | | |