Legal Relationship Test

Free collection if samples are taken at DNA Solutions laboratory
$50/person sample collection fee if not taken at DNA Solutions laboratory
Fully accredited test for recognition in law courts and government departments

Our Relationship test is performed to determine whether two or more individuals are biologically related. We compare the DNA of two people to determine which relationship is best supported by the amount of DNA they have in common. For example, if two people are known to share the same mother, our Relationship DNA Testing can be used to indicate the likelihood of them having the same father. We can see if their DNA profiles are more consistent statistically with them being half-siblings or full siblings. A wide range of relationships can be considered and the testing can be performed on males and females (grandparents-grandchildren, siblings etc). DNA Solutions Pty Ltd is Accredited for Relationship Testing, our Relationship DNA Tests are valid for:

Immigration purposes
Peace of mind purposes
Legal purposes*

*Test performed according to the Australian Family Law Regulations*

GRANDPARENT TO GRANDCHILD – DNA TEST

DNA Solutions Grand-Parentage test will give you a definite answer on whether or not you are biologically related to your grandson/granddaughter. DNA Solutions uses the latest techniques to give you the most accurate result in the quickest turnaround time, only 8 business days. To obtain the highest statistical result we recommend testing the grandson/granddaughter’s sample and, both grandparents’ samples as well as the mother’s sample, if possible. Testing these samples you will be aiming to the highest statistical and most accurate result. NOTE: To have the Mother's DNA sample (from both or either sibling) drastically increases the accuracy of the test and is included in the testing costs. NOTE: If you want to test 2 brothers then you may have a cheaper option of testing only the Y chromosome, click for brother to brother testing options. If you are wishing to test only sisters, then you should click for our sister to sister page.

Twin Zygosity DNA Tests

Twin Zygosity DNA Tests

Are my Twins IDENTICAL?

Identical twins occur when a single fertilized egg splits sometime within the first few days after fertilisation. This accounts for around 30% of twins. When the young embryo splits, each half takes the exact same DNA, so identical twins have exactly the same genetic makeup.

Are my twins SEMI-IDENTICAL?

Semi-identical or fraternal twins are created by two separate eggs and two separate sperm that are fertilised during the mother's same menstrual cycle. These types of twins share half their genetic information and are no more or less similar than normal siblings.

Siblings DNA Tests

Siblings DNA Tests

Legal Relationship Test

Free collection if samples are taken at DNA Solutions laboratory
$50/person sample collection fee if not taken at DNA Solutions laboratory
Fully accredited test for recognition in law courts and government departments

Immigration purposes
Peace of mind purposes
Legal purposes*

*Test performed according to the Australian Family Law Regulations*

Do Siblings share a Mother/Father?

A brother to sister (sibling to sibling DNA Test) works by testing a very large number of different DNA points (known as loci) in each person. Full siblings share a lot more DNA in common than do unrelated persons, and also, half siblings share more DNA in common than unrelated persons, but not as much as full siblings. So this test looks at the amount of DNA sharing and uses DNA statistics to evaluate the amount of DNA sharing to deduce biological relationship. Because we are evaluating the amount of DNA sharing, it is helpful to have DNA from any parents or other siblings of the persons being tested, since that drastically helps the evaluation process by allowing us to pin-point exactly which DNA is more likely to have come from each sisters Father in particular.

Grandparents DNA Tests