Twin Zygosity DNA Testing $119.00 How would you like to receive your DNA test results? (*Please use a secure mailbox to ensure confidentiality) * Select an option... Email (standard) Email + Hard Copy (+$15.00) Need Express results in 3 working days (from receipt of samples at the lab)? * Select an option... No Yes, Mother, Father, Child Test (+$79.00) Yes, Mother, Father, Child Test + 1 extra person (+$119.00) Yes, Mother, Father, Child Test + 2 extra persons (+$159.00) Yes, Mother, Father, Child Test + 3 extra persons (+$199.00) Would you like to include additional siblings? * Select an option... No Yes, 1 additional sibling (+$100.00) Yes, 2 additional siblings (+$200.00) Twin Zygosity DNA Testing quantity — OR — Add to cart * Required field