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    Over 10 years experience with DNA relationship testing.

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Twin Zygosity DNA Testing

Twin zygosity DNA testing will determine if twins are identical (monozygotic) or fraternal (dizygotic). homeDNAdirect provides you with a result that is 100% accurate.

The cost of our twin DNA test for 2 people is $199.  Multiple siblings can be added to the test at an extra cost. Your twin zygosity DNA test result will be ready in just 3-5 working days from receipt of samples at the laboratory.

Order your Twin Test Today!

How does a twin test work?

Identical twins result when a single sperm cell fertilizes a single ovum and the fertilized egg then splits into two, forming two separate embryos which are genetically carbon copies of each other. Non-identical twins result when two ova are fertilized separately by two independent sperm cells forming two embryos with different genetic makeups.

Our twin DNA test can confirm whether the DNA profiles of the test participants are identical (proving they are identical twins) or whether their DNA profiles are different (proving they are non-identical twins).

Our home kit will enable you to collect DNA samples using simple to use oral swabs which will then be returned for laboratory analysis.

Why do a twin DNA test?

  • Because looking at resemblance and the physical characteristics between twins is not always a clear way of knowing if twins are monozygotic or dizygotic.
  • Identical twins will have the same blood groups; they can donate blood to each other or even organs.

Ordering your twin test

If you wish to discuss your case, then kindly contact our technical support team. Our attentive and highly trained team will settle every query and guide you to through your twin DNA test. Alternatively you can proceed to order your test now. Please choose from one of the options below.


Order Your Twin Test from homeDNADirect Now!     Have Us Call You!     Contact homeDNADirect today!