Twins Test – Identical or Fraternal? Twin Zygosity

  • SCC Accredited DNA Test Results

  • ISO 17025 Standards

  • Authorized DNA Collection Site for IRCC

Determine if twins are identical (monozygotic) or fraternal (dizygotic)

\A Twins Test, also called a Twin Zygosity DNA Test, determines whether twins are identical or fraternal. While often done out of parental curiosity, results can also help in organ or bone marrow donation cases. Our test provides accurate answers for anyone wanting to know their twins’ genetic relationship.

Your DNA Test Specialists in Toronto Canada

  • Standards Council of Canada (SCC) Accredited DNA Test Results

  • ISO 17025 Standards

  • PhD reviewed results

Twins DNA Test, Forensics Canada Inc.

Identical vs Non-Identical Twins

Identical Vs Non Identical Twins, Foremnsics Canada Inc.

About identical and non-identical twins

Twins test also known as zygosity test helps us find out whether twins, triplets or more are identical.

Identical Twins– Identical twins result from one zygote i.e. one egg is fertilized by one sperm cell and then splits into two embryos. Identical twins will have identical DNA profiles.

Fraternal Twins –When two eggs are independently fertilized by two different sperm cells, the resultant twins are fraternal.

Have Questions About A DNA Test? Ask Our Experts

How It Works?

Three Steps, Its Simple

DNA Testing Step1

ORDER TEST KIT

Order ONLINE and we will ship you a DNA sample collection kit on the address provided in the online order in 2 to 3 days. Kits can be shipped to different locations

DNA Testing Step2

COLLECT AND SEND SAMPLES

Follow kit instructions to collect DNA samples. Make sure all the sample envelopes are labelled and mail them back to us on the address provided in instructions

RESULTS BY EMAIL

In approximately 7-10 working days, we will send the results of your test by email to the email address (s) on file. We will not discuss/convey results over the phone.

Reasons For A Twins DNA Test?

Parents want to know all they can about their babies and especially when they have twins or triplets or more. When these twins grow up they also get curious to know. Here are the reasons why parents want to know about the zygosity of their babies:

  • Just for their curiosity
  • To answer the question ” Are they identical?”
  • To find out the odds of having twins/triplets again especially for women with non-identical twins
  •  For any other reason where knowledge of zygosity is essential
  • To find out their suitability for organ or bone marrow donation

A simple cheek swab is good enough to perform a twin DNA test.  The DNA analysis is the same as is used for paternity tests. Canadian Forensics will provide details of the DNA profiles for each child/individual and confirm whether the results are consistent with them being identical or fraternal.

Twins can be identical and non-identical. Identical or monozygotic twins share the same DNA while non-Identical twins or heterozygotic twins in some rare cases could have a different father. Sometimes appearance doesn’t give you an answer to a question if twins are sharing the same DNA.

Note: Standard result turnaround time (7-10 business days) takes place solely using oral swab samples. Using a discreet sample for any DNA test may lead to an increase in turnaround time.