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Twin Zygosity Analysis

Order Code: 4060 Get Requisition Form
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Test Information
Monozygotic twins originate from a single fertilized ovum dividing into two embryos, while dizygotic twins result from ovulation of two eggs during a single menstrual cycle.
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Disease State
Stem Cell Transplantation
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Test Type
Genetic Test
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Sample Notes
EDTA Whole Blood (lavender top) or Buccal Swabs
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Requested Volume
5 ml on each twin or 4-8 Buccal Swabs per requisition
Minimum / Pediatric Volume Icon
Minimum / Pediatric Volume
2 ml
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Shipping Information
Room Temperature
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CPT Codes
  • 81265
Method Icon
PCR and Fragment Analysis
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Turnaround Time
7 days
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New York State Approval
Please contact Versiti Client Services for the latest New York State approval information
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DEX Z-Code™
Diagnostic Laboratories
Diagnostic laboratory services including HLA testing, donor testing, immunohematology reference lab testing, hematology testing and more.
Human Leukocyte Antigen (HLA) Typing
Versiti Diagnostic Labs’ Histocompatibility Lab provides human leukocyte antigen (HLA) typing for solid organ transplant and HCT patients.
Our Experts
Research investigators, postdoctoral fellows and laboratory staff at Versiti Blood Research Institute and Diagnostic Laboratories.
Access requisitions for Versiti Diagnostic Laboratories.