DNA Relationship Testing

Relationship testing is the ideal DNA test for those wishing to confirm their biological relationship to aunts, cousins, grandparents and other relatives. At easyDNA Ireland we offer a range of relationship DNA tests for a range of relationship queries you may have. Our tests offer the most accurate results and testing is carried out in SIO 17025 and AABB accredited laboratories.

Our relationship tests start from as little as €395 and a turnaround time of 3-5 working days applies to all relationship testing with the exception of X chromosome testing and Mitochondrial DNA testing.

Tips to keep in mind before relationship testing

Before commencing any relationship test with your alleged blood relatives we definitely recommended have your objectives clear. We do in fact, always suggest contacting our customer support team to get advice as we may be able to suggest better and more conclusive alternatives to the DNA test you had in mind.

The following information is indispensable for us to recommend the best test:

• What specifically do you want to find out?
• Are the people available and more importantly, willing to be tested?

The range of tests we offer

DNA Siblings Testing  - 3 different types of sibling tests are available depending on whether the test is being carried out between only males, only females or males and females in the same test.

Grandparentage DNA Testing  - DNA testing to establish whether the grandmother and grandfather of a grandchild are in fact, likely to be the true biological grandparents.

Aunt-Uncle DNA Testing (Avuncular DNA Test)  - Aunts or uncles along with their niece or nephew can take part in an avuncular test to determine  the probability of biological relationship between them.

Twins DNA Test – a highly accurate test to confirm the nature of twin zygosity (that is, to establish whether the twins are identical or fraternal)

MtDNA testing – This test is ideal if individuals wish to know whether they share a common maternal line (perhaps the same mother, grandmother etc). It is an extremely accurate test and highly suited to such situations.

Confirming consanguinity between siblings?

Sibling testing is usually done by people who wish to know whether they share the same biological mother or father (in most cases, the father is in question although we have had cases where sibling wish to know whether they share the same mother).

• STR Testing (short tandem repeat testing): this test is carried out when test participants are male and female.  To maximize the accuracy of laboratory analysis, we always recommend including a sample of the know parent in a sibling test.
• In cases where siblings are male and wish to know whether they have the same father, we suggest Y chromosome testing. This test is extremely accurate between agnate relatives as males born from the same father will have the same exact Y chromosome genetic blueprint. We do not require the mother’s sample for this test.
• Female siblings who wish to know whether they share the same father can do an X chromosome test. If females have the same mother then we will also need her sample for a conclusive analysis. X chromosome testing between siblings from different mothers does not require a sample from the known mother.

Results of a relationship test

Unlike paternity tests, relationship DNA tests provide very different types of results depending on the test in question. Some sibling tests provide a probability of relationship and an interpretation of the results; in other words, it will show whether the siblings tested are more likely to be half siblings, full siblings or unrelated. With X chromosome and Y chromosome testing, the result is either a match or a mismatch. The same applies for MtDNA testing - if two people share the same mitochondrial DNA profile, then they must share a common blood line from their maternal side and thus, have a maternal ancestor in common. Should you have any more questions, ask us. We will be more than happy to assist you.

Siblingship testing starts from as little as €385 and the price includes our DNA testing kit. Results will be sent within 7-14 working days from the receipt of samples at the laboratory.

Cases of immigration

The Irish Naturalization and Immigration Services, which deals with Irish visas, citizenship and more, may require relationship DNA testing to prove the relationship between alleged relatives. easyDNA Ireland offers relationship DNA test results that can used for immigration as proof of relationship between consanguineous relatives. 

For more information about this type of DNA test we suggest going to our immigration page. Click here

For instructions on how to collect your DNA samples, visit our sample collection guide. If you need need to submit a sample other than an oral swab (cigarette ends, toothbrushes, teeth and so forth) go to our DNA forensic testing page for more information.

If you would like to order your siblings test today >>> Proceed to Order Here

If you require more information about DNA paternity analysis or want to discuss your particular case in Ireland contact us directly or have us call you.