Human Genetics: Make a Family Tree

Question

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.

Answer 1

I will do my best to type this as I don't see a drawing function to answer...

◊ - men (should draw as a square)

o - women

= marriage/have kids together

Λ - fraternal twins

A - identical twins (marks specific for each type of twin - look it up to make sure you draw it correctly)

∏

◊=o ◊=o

l l l Λ

o = ◊ ◊=o ◊ ◊

l l

l l l l l l A l

◊ o o o ◊=o ◊ ◊ ◊

l

l l l l

o ◊ O o <profound is bolded, no sibling order specified

l

◊

This example had some odd wording, but I hope this helps. Best of luck