Human Genetics: Make a Family Tree
Make a family tree using data obtained in the survey of the woman. The proband (a woman) has one brother and two sisters, the eldest of whom has one son. The proband’s father had 3 sisters and one brother. The proband’s mother had 3 brothers, 2 of whom were monozygotic twins. Parents of the proband's father were cousins (the proband's great-grandfather (the grandfather’s father) was the brother of the proband’s great-grandmother. The proband’s grandmother (the mother’s mother) had a brother and a sister, who were twins.