DNA Siblings Test

A siblings DNA test will tell you whether any of these relationship exists between the tested siblings:

• Half siblings vs. full siblings: siblings will have one parents in common or share both parents in common;
• Half siblings vs. no siblings: siblings will share just one parent between them and have no genetic relationship at all is they are not siblings;
• Full siblings or no siblings: full siblings will share both parents; however, if they are not siblings they will have no biological relationship and have no parents in common.

A siblings test ultimately tries to tell you if there is common relationship with a parent who is not being tested. This means the test is more is very different to a standard paternity test or maternity test. In fact, when a direct alleged parent-child DNA test is viable, we tend to recommend that.

We suggest that you read the following types of DNA tests available to identify which one is most suitable to your case. Click on the links below to find more information about the test and pricing:

• STR analysis: will determine biological relationships between siblings of different sexes when parents are no available for testing;
• X-chromosome testing: will determine biological relationships between sisters from different mothers;
• Y-chromosome testing: will determine biological relationships between brothers;
• MtDNA testing: will determine whether interested parties share the same maternal lineage.

The price for a siblings test begins from $495. The price of the test and turnaround time depends on the test chosen, the number of individuals taking part in the test and how many testing kits we will need to send out.

If you have any more queries which are not answered in our Relationship DNA Testing  page, please contact us directly to discuss your case.