Autosomal STR (Fragment Analysis) Test
Short Name: Autosomal STR Test
Also known as: STR Analysis, DNA Paternity Test, Autosomal Short Tandem Repeat Test, Fragment Analysis DNA Test
Autosomal STR (Fragment Analysis) Test test available at DNA Labs India for ₹15,000. Uses Fragment Analysis on Peripheral blood samples. Results in 10-15 business days. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr SULOCHANA HEMCHANDRA HOLLA
Consultant Medical Geneticist · Reg: 8532
Last reviewed: September 7, 2026
Overview
The purpose of Autosomal STR (Fragment Analysis) is to determine biological relationships by comparing DNA profiles. It is used to confirm paternity, maternity, siblingship, and other familial connections, providing evidence for legal proceedings, immigration applications, and personal peace of mind.
- Test Code
- 3137
- Price
- ₹15,000
- Sample Type
- Peripheral blood
- Result Time
- 10-15 business days
- Fasting Required
- No
- Method
- Fragment Analysis
Sample Collection
No specific preparation is required. Ensure the individual has not eaten or drunk anything for at least 30 minutes before buccal swab collection, if applicable.
Method: Venipuncture
Laboratory Analysis
A healthcare professional will collect the sample using a buccal swab rubbed inside the cheek or via blood draw from a vein. The process is quick and minimally invasive.
Report Delivery
Apply pressure to the collection site if blood is drawn. Avoid eating or drinking for a short period if a buccal swab was used. The sample is sent to the laboratory for analysis.
Timeline: 10-15 business days
Patient Instructions
About This Test
Who Should Get This Test
The purpose of Autosomal STR (Fragment Analysis) is to determine biological relationships by comparing DNA profiles. It is used to confirm paternity, maternity, siblingship, and other familial connections, providing evidence for legal proceedings, immigration applications, and personal peace of mind.
How to Prepare
- Avoid eating, drinking, or smoking for 30 minutes before buccal swab collection
- Ensure the mouth is clean before swabbing
- For blood collection, stay hydrated and inform the phlebotomist of any medical conditions
- Follow all instructions provided by the collection team
Doctor's Notes
Reviewed by Dr SULOCHANA HEMCHANDRA HOLLA — MBBS, MD (Medical Genetics) · Reg. No. 8532
"Autosomal STR testing is essential for establishing biological relationships in legal, immigration, and personal contexts, ensuring accurate and reliable results."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume
- Contaminated or hemolyzed samples
- Improper labeling or documentation
- Sample collected in non-sterile conditions
Understanding Your Results
Inclusion
High probability of biological relationship (e.g., >99.99%)
Exclusion
No biological relationship based on multiple loci mismatches
Inconclusive
Insufficient data or mutations; further testing may be needed
Consult a geneticist or healthcare provider if results are inconclusive, if there are concerns about genetic disorders, or for guidance on legal implications.
Limitations
- ⚠Cannot determine exact relationships beyond first-degree relatives
- ⚠Requires reference samples from alleged relatives
- ⚠Results may be inconclusive in cases of genetic mutations
- ⚠Not suitable for prenatal testing without additional methods
Risks & Considerations
- ●Minimal risk of bruising or infection at blood draw site
- ●Slight discomfort during buccal swab collection
- ●No significant health risks associated with the test
Interfering Factors
- ●Contaminated or degraded DNA samples
- ●Recent blood transfusions or bone marrow transplants
- ●Improper sample collection or storage
- ●Presence of inhibitors in the sample
Compare With Similar Tests
| Test | Autosomal STR (Fragment Analysis) | Y-STR Analysis | Mitochondrial DNA Testing | X-STR Analysis | SNP Analysis |
|---|---|---|---|---|---|
| Comparison | Autosomal STR (Fragment Analysis) |
Frequently Asked Questions
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