DNA Relationship Testing
Are they your real genetic relatives? Establish biological relationships with your alleged relatives with our relationship DNA testing services. Our competitive relationship tests start from just $699. There are many reasons why individuals seek relationship tests; these tests are sometimes a great alternative when a direct parent to child DNA test, such as paternity testing, is not a viable possibility.
The variety of tests we offer to confirm relationships
Relationship tests are rather complex. We in fact do prefer if our clients get a free consultation from us before going ahead with a DNA test. Sometimes clients might presume that one type of test is what they need but we can place our years of DNA testing experience at your disposal and perhaps, find a better alternative you may not have thought about. We just need you to tell us what relationship you need to establish (what do you need to discover?) and whether the people needed to be tested are willing and available for the test.
Sibling relationships vary depending on whether the brothers and/or sisters involved share both biological parents or just one parent. We also need to know which common parent they have, if any, and whether any of the known parents are available for the test. easyDNA New Zealand has handled some of the most complex cases, sometimes involving multiple siblings.
Generally, sibling tests are carried out for peace of mind. We do however, also offer legal siblingship testing of which DNA test results can be used to support legal documentation and evidence of proof of relationship as might be required in court cases.
Types of sibling testing
- Our Y chromosome test can only be carried out between males. If two siblings think they share the same father and wish to find out, this test is ideal. If siblings are male and want to determine if they share the same father or their shared male lineage, this is the idea test to carry out. Find out more about Y chromosome testing
- Only females can carry out X chromosome testing. Ideally the test is carried out between females with different mothers who need to know if they have the same father. However, X testing can also be carried out succesfully between sisters with the same mother if the mother's sample if available; without the mother's sample we will be unable to provide this test. Read more about X chromosome testing
- easyDNA New Zealand offers mitochondrial DNA testing for maternal lineage. An MtDNA test is highly suited to individuals who wish to discover whether they share a maternal ancestor, be it a mother, a grandmother or any other female relative.
- Twin siblings curious to know whether they are monozygotic or dizygotic can do so with our twin zygosity test.
Siblingship testing is priced from $699. Results are available in 5-7 working days receipt of samples at the laboratory.
In cases of sibling testing, we always recommened including the sample of the mother, if available. This will help us with our analysis. We do not require the mother's samples for the Y chromosome test as for this test we only analyse Y chromosome specific genetic markers.
Grandparents DNA testing Order Now
easyDNA offers testing between grandparents and grandchildren. This test is very useful if as a grandparent you need to confirm the biological relationship between your grandchild and his or her parent but cannot directly carry out a paternity test or maternity test. With grandparentage DNA testing, we always suggest testing both grandparents. If only one grandparent is available we may be able to carry out the DNA analysis if we have access to the DNA sample of one of the grandchild's biological parents. A single grandparent test between just grandmother or grandfather with a grandchild is not accurate enough to make this test feasible. Contact us for more information about grandparent testing.
DNA testing for 2 grandparents and 1 grandchild is $949. Results are available in 5-7 working days. Turnaround time commences from the moment samples are received in our laboratory.
Avuncular DNA test (aunt/uncle testing) Order Now
Aunts and/or uncles can take a DNA test with their niece and /or nephew to confirm whether they are biological relatives. Depending on the sex of people involved we can sometimes be able to suggest a more accurate test.
We sometimes call DNA testing between aunts and uncles with their neices and/or nephews as avuncular testing. The price starts from $699. Results are available in 5-7 working days.
STR analysis - Full or half siblings?
A brother and sister DNA sibling test compares repeats of DNA sequences on the profiles of the people tested. These repeats are known as short tandem repeats. Full siblings will have more common genetic material than half siblings. Half siblings would normally have more common DNA than unrelated people. By looking at the common DNA between two or more test participants, we can estimate the percentage liklihood that the people are half siblings, full siblings or unrelated..
We always suggest to include the sample from any known parent/s of the person/s being tested.
A sibling test or relationship test result is different to the results provided for other tests such as paternity tests. Read up about Interpreting the Result of a DNA Test and get further insights and explanations about the results for this type of test.
Samples are collected using our home sample DNA collection kit. We supply you with everything you need including the oral swabs. Breeze through our DNA sample collection guide to see just how quick and simple the procedure you have to follow is.
Forensic samples in relationship tests
Sometimes our clients are unable to provide us with oral swab samples. In such cases,we can offer DNA forensic testing as an alternative. Our advanced forensic testing capabilites means that we can test anything from hair follicle samples to used tissues and kleenexes to condoms and stains.
You may discuss your DNA testing requirements by contacting us. If you leave easyDNA your phone details, You can have us call you.