Sibling DNA Testing Services

Legal and At-Home Sibling DNA Testing

Unsure whether you and siblings share the biological father? Choose the right sibling DNA testing option you need from the options listed below.

Paternity express at home sibling dna test kit
At-Home Sibling DNA Test

This DNA test can be used for informational and peace of mind purposes.

Legal sibling testing
Legal Sibling DNA Test

This is a legally admissible DNA Test that can be used for court like for immigration cases, estate case and Social Security benefits.

Frequently Asked Questions

How does a sibling DNA test work?

The goal of a sibling DNA test is for the laboratory to compare and analyze DNA profiles of two participants who believe they share a common biological parent. Full siblings share up to 50% and half siblings share up to 25% of the same DNA. The lab compares the alleged siblings profile DNA profiles to determine if a biological relationship exists.

How accurate is a sibling DNA test?

Sibling testing is an accurate secondary DNA testing option when an alleged father is unavailable to participate in the paternity testing process. The accuracy of the lab’s analysis is determined by the quality of the samples submitted to the laboratory.

Does the mother need to participate in a sibling DNA test?

No, the mother does not need to participate in the DNA sibling testing analysis, but we recommend that the mother does participate in order for the laboratory’s comparative statistical analysis to be more efficient.

How long does a sibling DNA test take?

DNA Sibling testing results, whether for legal or for non-legal purposes, have an average turnaround time of two to three business days, from the date the lab receives all specimen samples.

What should be taken into consideration is alternative forensic samples may have a longer turnaround time, depending on the sample type. That can range anywhere between five days up to three weeks.

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