Relationship DNA Tests

We offer a comprehensive range of Relationship DNA Tests including Siblings, Twins, Maternity, Aunt, Uncle & Grandparent testing.

Relationship DNA tests are often used to determine paternity when the alleged father is deceased, unavailable or unwilling to take part in a test but relatives such as the alleged father’s brother, sister, parents or the child’s sibling are available.

A paternity test would provide more conclusive results but can only be carried out if we can obtain DNA samples from the alleged father.

Please see below for more information about the relationship tests we offer including a sibling DNA testing kit, twin DNA testing, DNA testing for grandparents, a DNA test for aunt or uncle and our maternity DNA test.

Y chromosome testing, or Y-DNA testing, will confirm whether two males are from the same paternal line while a mitochondrial DNA test, or mtDNA test, will confirm if two participants (male or female) are from the same maternal line.

We also offer Surrogacy DNA testing for situations that require a DNA test for an IVF baby or for adoption and a genetic reconstruction DNA test that can be used to establish paternity or maternity when the alleged father or mother is not available.

Please see below for more information about all our relationship DNA tests.

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Sibling DNA Test (Only £199)

A Sibling DNA Test will confirm whether you and another individual share a biological parent (usually the father). Sibling DNA testing starts at only £199 with results available in just 5 working days. The cost of the DNA testing service includes two siblings, but you may add more as required. (read more…)


Aunt and Uncle DNA Test (Avuncular Testing) (Only £199)

The Aunt and Uncle DNA Test, also known as Avuncular testing, is performed when individuals wish to confirm a biological relationship between aunts and/or uncles and their nieces or nephews. Our Avuncular DNA test starts at £199 with results sent by email in 5 working days. (read more…)


Grandparent DNA Test (Only £249)

Our Grandparent DNA Test will help establish the genetic relationship between a grandchild and his or her grandparents. We offer grandparent DNA testing using the DNA samples from the grandmother, grandfather and the grandchild. (read more…)


Twin Zygosity DNA Testing (Only £119)

If you need to establish whether twins are monozygotic or dizygotic, we recommend Twin Zygosity DNA Testing. AffinityDNA offer a twin DNA test for just £119 with results emailed in 3-5 working days from receipt of samples. (read more…)


Mitochondrial DNA Test (Only £299)

Everyone shares the same Mitochondrial DNA (mtDNA) with their mother, maternal grandmother, maternal great mother and so on. If you need scientific proof that yourself and another individual share a common maternal ancestor, our Mitochondrial DNA Test (mtDNA test) will provide you with the clear-cut answer you need. (read more…)


Y Chromosome Test (Y-DNA) (Only £199)

The Y chromosome (Y-DNA) test will enable male relatives to establish whether they have the same biological father or share a common paternal line. Our test is extremely accurate because The Y chromosome is passed almost unchanged from father to son to grandson and can be used to trace back one, long direct paternal line. (read more…)


Maternity DNA Test (Only £99)

A Maternity DNA Test is used to confirm the biological relationship between a mother and her child or children. The test offers extremely high levels of accuracy, leaving no doubts. The test for 2 individuals (alleged mother and child) starts from £99 with results concluded and emailed within just 3-5 working days from when your DNA samples reach the laboratory. (read more…)

DNA Test for Surrogacy (£Contact Us)

A DNA Test for Surrogacy will provide parents with the evidence they need to prove that they are the biological parent or parents of the child. Please Contact Us in complete confidence to discuss your requirements so we can recommend the appropriate relationship DNA Test. (read more…)


Genetic Reconstruction DNA Test (Only £299)

Our Genetic Reconstruction DNA Test offers an alternative to paternity testing in situations where the child’s alleged father cannot be tested. This test is offered for both peace of mind and legal purposes. Our peace of mind genetic reconstruction test starts at just £299. (read more…)

We now test 21 genetic markers to ensure our DNA tests are amongst the most accurate and provide complete peace of mind.
We provide quick DNA test results because we know that time matters and you need a fast answer to put your mind at rest.
We only work with the most highly accredited laboratories in the world to provide guaranteed results that you can trust.
Your privacy is of the utmost importance to us and all our kits are shipped in discreet packaging with no logo to ensure discretion.


Dog Allergy Test Kit Review
We had our dog allergy tested with you last year. We were advised that it is not a good enough test by our vet and many others online. This however couldn't be more wrong. We used the results to remove foods from her diet and even hypo-allergenic shampoos etc. Since she turned 1 years old we had her allergy tested by blood at the vet to see if she had out grown any of these allergies. The results were exactly the same as we were given by yourselves. Everything in red she is still allergic to. Without your help I'm not sure how we would of been able to help her in her first year. Especially given that she is allergic to almost everything hypoallergenic.
September 2021
Paternity Test Kits Review
Thank you so much for your help with this. A very professional and caring service. Reminds me how very different customer services are in UK compared to the service accepted by most people here in Spain. Thanks again.
June 2021
Dog Allergy Testing Review
Please forward my praise to your superiors with regards to your customer attention - thank you for all the communication at all times, and making sure all OK. Much appreciated. 1 day into eliminating salmon oil from her diet (daily supplement I was giving her for for her arthritis) and the turkey menus she is considerably better, all in 24 hrs. Can’t wait to see how she improves within a few weeks of elimination.
April 2021
Paternity DNA Test Kit Review
You guys have honestly just kick started my life!! I’m buzzing
March 2021
Prenatal Paternity Test Review
Thank you so much for the great service and fast results
March 2021
Sibling DNA Test Kit Review
Again, thank you so much, the journey with Affinity DNA has been fast, efficient and the technical help amazing from beginning to the end.
March 2021
Degenerative Myelopathy Test Review
Amazing very fast delivery and so much detailed information!
January 2021
Father and Daughter Paternity Test Kit
I am over the moon with the service, thank you very very much.
November 2020
Health and Fitness DNA Test Review
Many thanks for your support and the excellent service provided by your company.
September 2020
DM Test for Dogs Review
Just a note to say thank you again for sending results in the post, which I received today. Your service & kindness is exemplary.
August 2020
Father and Son Paternity Test Kit
Thank you so so much mark for your fast response with the results. You have absolutely made my families life with this.
July 2020
Father Son Paternity Test Review
Thank you for our results I must say the communication and service were outstanding.
July 2020
Paternity Test for Father and Child Review
Thank you a great result I was hoping to be the father great service at a great price.
June 2020
Paternity Test Kit Feedback
Thank you so much for a speedy and comprehensive service. I am very pleased and impressed
June 2020
2 Children Paternity Test Kit Review
Thank you for the test results and a quick professional service.
May 2020
Affinity Paternity Test Review
I wish to say "big thanks" to you (and all who work with you) for your really exemplary communication and professional relationship with me.
April 2020
Parentage DNA Test Review
Thankyou so much for this service. It is a massive relief for me to have the doubt of parentage removed. It has changed my world Thankyou.
February 2020
DNA Paternity Tests Review
Thank you so much Mark, roller coaster of emotions but absolutely buzzing I’ve finally got what I wanted after 3 year of knowing. Really appreciate your work and will definitely recommend your services to other people who need ur service. Regards One happy dad
January 2020
Home Paternity DNA Test Review
Thankyou so much!! The resulting wanted, you have been brilliant throughout, will always recommend you.
January 2020
Home Paternity Test Kit Review
Thank you so much, honestly changed mine and my families life. Happy Christmas you just made mine 🙂
December 2019