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Sibling ship DNA Test

Siblingship DNA Test

A siblingship DNA test is used to determine whether two or more individuals share one or both biological parents. It is especially helpful when direct parental testing is not possible, and people want to establish family connections through scientific proof.

Types of Siblingship DNA Tests

  • Full Siblingship Test – Confirms whether individuals share both parents.
  • Half Siblingship Test – Determines if individuals share only one biological parent.
  • Extended Relationship Test – Includes analysis with other relatives when parents are unavailable for testing.

When is a Siblingship DNA Test Needed?

A siblingship DNA test is often chosen when people want to confirm if they share one or both biological parents. This test is commonly used in situations like:

  • Family clarity:To understand true biological relationships between siblings.
  • Inheritance or legal matters:To prove blood relationships in court cases or property disputes.
  • Immigration purposes:When official documents are missing, DNA results can help meet application requirements.

It’s a reliable way to bring clarity, proof, and peace of mind about family connections.

How Does the Siblingship DNA Test Work?

Sample Collection
A simple buccal swab (cheek swab) is collected from each sibling. This can be done at home using a test kit or at a certified clinic.

DNA Analysis
The lab examines and compares specific genetic markers using advanced methods like PCR (polymerase chain reaction). This helps determine if the individuals share one or both parents.

Results & Reporting
The outcome is given as aprobability percentage:

    • Higher percentages = Strong support for full or half-sibling relationships.
    • Lower percentages = Indicates no biological relationship.

Including DNA samples from a parent or another close relative can make the results even more accurate.

How Does a Sibling ship DNA Test Work?

Here’s a step-by-step process:

01.

Sample Collection

A swab is rubbed inside the cheek of the child and alleged father.
02.

Samples to Lab

Samples are sent to an accredited DNA laboratory.
03.

DNA Analysis

Lab compares genetic markers using STR profiling and PCR amplification.
04.

Report Delivery

Reports are delivered via email

The procedure is simple, painless, and highly reliable.

Sibling ship DNA Test(FAQs)
Can a DNA test prove half-siblings?
Yes. A siblingship DNA test can show if two people share one biological parent (half-siblings). The lab measures how much DNA is shared to determine the relationship.
How much DNA do full siblings share?
Full siblings usually share about 50% of their DNA, inherited from both parents. Half-siblings generally share around 25%.
What does an “inconclusive” result mean?
Sometimes, the test results do not clearly confirm or rule out a sibling relationship. This happens when the probability falls into a middle range. In such cases, adding a parent’s DNA or testing more relatives can provide clearer answers.
Can the test be done without parents’ DNA?
Yes. Siblingship testing can be performed using only siblings’ DNA. However, including a parent’s sample, if available, increases accuracy and helps confirm whether siblings are full or half.
What if one of the tested people is adopted or unrelated?
If someone is adopted or not biologically related, the test will show a very low probability or a “no relationship” result. DNA does not lie, so unrelated individuals will not share sibling-level genetic markers.
What if siblings have different mothers or fathers?
The test can still detect a relationship if siblings share one biological parent (half-siblings). However, it may not identify which parent is shared unless DNA from the known parent is included.
How much does a paternity test cost in India?
The cost depends on the type of test (peace of mind, legal, or immigration). Contact us for a transparent, no-hidden-fee quotation.