or union Probands Female ○ Consanguinity and Number of children of sex indicated Monozygotic twins 口 AFfected pedigrees ① Nonpenetrant camer, y manifest disease 口 ○ Dizygotic twin Twins of unknown zygosity Proband and individuals Deceased individual 人 Adopted into family d Adopted out of family Multiple unions Arrow indicates seeking counseling 岛 dates if available 人人Probands and pedigrees