Pedigree Drawing and Family Histories

Question 1

What are the symbols for

• male, female, sex unknown
• affected individual
• multiple individuals
• deceased
• pregnancy
• miscarriage
• proband
• marriage/partnership
• divorce/separation
• consanguinous
• siblings
• MZ
• DZ
• cancer diagnosis

Answer 1

Male - 🔲
Female - 🔘
Sex unknown - 🔷

Affected individuals - ◼️
Multiple individuals - 5️⃣

Deceased - crossed out
Pregnancy - 🅿️
Miscarriage - 🔺with sex underneath if known

Proband - arrow towards 🔲 or 🔘

Marriage/partnership - joined with 1 line
Divorce/separation - double line through partnership line
Consanguinous - joined with a double line

Children/siblings - from L=>R in older of age

MZ - triangular bracket with transverse line
DZ - triangular bracket only

Cancer diagnosis - shade 1/4

Question 2

What info would you like to collect

Answer 2

Name, DOB
Type of cancer, history of bowel polyps
Age at diagnosis
Treatment and hospital treated
Jewish/Polish ancestry for Founder mutations

Minimum of 3 generations
Check if all siblings have same parents