Sibling DNA Test
Sort out once for all your biological ties
The sibling DNA test addresses the issue of whether two or more siblings are full siblings, half siblings, or are not biologically related to each other.
If a direct comparison with the hypothetical parents is not possible, the sibling DNA test may be used alternatively to provide answers to questions of paternity/maternity.
This test is more complicated compared to the paternity/maternity test, as the two siblings do not share a directly passed down/inherited DNA.
In cases where the result requires more accuracy, it is best to also test one parent or other children of the tested parent.
Do you need the Sibling DNA test for legal use?
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Analysis of 24 - 83 STRs
DNAlogy analyses include the study of 24-44 genetic markers (STRs). In addition, up to 27 Y chromosome markers can be studied to determine common patrilineal ancestry, mitochondrial DNA polymorphisms to determine common matrilineal ancestry, as well as up to 12 X chromosome markers to enhance the accuracy of the result.
The results of laboratory analyses are entered in special software which taking into consideration all required parameters (e.g. race, likelihood of mutation, internationally-recognised population databases, etc) process the data to compute the final results.
Analysis and interpretation of results is carried out by 2 special experts in our laboratory, who also sign off the final expert report that contains the laboratory results and the detailed conclusions.
Subjects of the Sibling DNA Test
Apart from the hypothetical siblings we recommend that the following persons be also tested:
a) The other parent (e.g. if the question is whether two persons have the same father, then it is strongly advised that the mother be also tested)
β) More siblings (e.g. if the question is whether two persons have the same parent, then it is strongly advised that other children of the said parent be also tested)
Είναι αυτό το ερώτημά σας;
Full Siblings-Y Paternal Lineage
Half Siblings -Υ Paternal Lineage
Siblings-mtDNA Maternal Lineage
Half Siblings -mtDNA Maternal Lineage