With several types of DNA tests available, it's natural to feel uncertain about which one you need. The right test depends on your specific question, who's available for testing, and whether you need legal validity. This guide walks you through the decision process step by step.
Quick Answer
Most people need one of four tests: Standard Paternity (R3,500) for father-child questions, Prenatal (R24,370) during pregnancy, Siblings (R5,200) when parents aren't available, or Legal versions for court/immigration use.
Quick Decision Guide
| Your Question | Recommended Test | Price (Peace of Mind) | Price (Legal) | Turnaround |
|---|---|---|---|---|
| "Is this man the father?" | Standard Paternity Test | R3,500 | R4,200 | 3 weeks |
| "Is this man the father?" (mother unavailable) | Motherless Paternity Test | R2,950 | R3,600 | 3 weeks |
| "Is this man the father?" (pregnant) | Prenatal Paternity Test | R24,370 | R28,500 | 3 weeks |
| "Are we full/half siblings?" | Sibling DNA Test | R5,200 | R6,500 | 2 weeks |
| "Is this my grandparent/grandchild?" | Grandparentage Test | R6,600 | R7,500 | 2 weeks |
| "Is this my aunt/uncle?" | Avuncular Test | R5,200 | R6,000 | 2 weeks |
| "What's my maternal/paternal lineage?" | MtDNA / Y-DNA Test | R6,600 | N/A | 3 weeks |
| "Court/immigration/legal use needed" | Legal version of above | N/A | +R700-R4,000 | 3 weeks |
Understanding the Main Test Types
1. Paternity Tests (Father-Child)
Purpose: Determine if a man is the biological father of a child.
- Standard Trio (R3,500): Mother + Child + Alleged Father. Most accurate.
- Motherless (R2,950): Child + Alleged Father only. Slightly less statistical power.
- Prenatal (R24,370): From 8 weeks gestation. Non-invasive blood draw from mother + cheek swab from father.
2. Relationship Tests (When Parents Unavailable)
Purpose: Prove biological relationships when direct parent-child testing isn't possible.
- Sibling Test (R5,200): Full vs half siblings vs unrelated. 2 weeks.
- Grandparentage (R6,600): Grandparent + Mother + Child. 2 weeks.
- Avuncular (R5,200): Aunt/Uncle + Child. 2 weeks.
- Genetic Reconstruction (R6,800): Multiple relatives to reconstruct missing parent. 3 weeks.
3. Lineage & Ancestry Tests
Purpose: Deep ancestral origins, not close relationships.
- MtDNA (R6,600): Maternal line (mother's mother's mother...). Both sexes can test.
- Y-DNA (R5,200): Paternal line (father's father's father...). Males only.
4. Legal vs Peace-of-Mind
Every test above has two versions:
- Peace of Mind: Self-collected, personal knowledge only. Not court admissible.
- Legal: Chain-of-custody, ID verification, court/immigration admissible. +R700-R4,000.
Step-by-Step Decision Tree
Answer These 4 Questions to Find Your Test
What is your core question?
"Is he the father?" → Paternity test | "Are we siblings?" → Sibling test | "Who are my ancestors?" → Lineage test
Is the mother available for testing?
Yes → Standard trio test (more accurate) | No → Motherless version available for most tests
Are you currently pregnant? (Paternity only)
Yes → Prenatal paternity test (from 8 weeks) | No → Standard postnatal test
Do you need results for legal purposes?
Court, maintenance, immigration, inheritance → Legal test (chain of custody) | Personal knowledge only → Peace of mind
Side-by-Side Test Comparison
| Feature | Standard Paternity | Prenatal Paternity | Sibling Test | Grandparentage | MtDNA / Y-DNA |
|---|---|---|---|---|---|
| Relationship Tested | Father-Child | Father-Fetus | Sibling-Sibling | Grandparent-Grandchild | Deep Maternal/Paternal Line |
| Participants Needed | Child + Father (+ Mother) | Pregnant Mother + Father | 2+ Siblings | Grandparent + Mother + Child | 1 Person (Maternal/Paternal) |
| Accuracy | 99.99%+ | 99.9% | 95-99%+ | 95-99%+ | Lineage only, not relationship |
| Turnaround | 3 weeks | 3 weeks | 2 weeks | 2 weeks | 3 weeks |
| Peace of Mind Price | R3,500 | R24,370 | R5,200 | R6,600 | R5,200-6,600 |
| Legal Price | R4,200 | R28,500 | R6,500 | R7,500 | N/A |
| Sample Type | Cheek swab | Blood draw + swab | Cheek swabs | Cheek swabs | Cheek swab |
| Legal Admissible | Legal version only | Legal version only | Legal version only | Legal version only | No |
Special Situations
Alleged Father Deceased or Unavailable
When the father cannot test, we use alternative relationship testing:
- Grandparentage (R6,600): Tests paternal grandparents + mother + child
- Avuncular/Uncle-Aunt (R5,200): Tests father's siblings + child
- Sibling Test (R5,200): Tests child against known sibling
- Genetic Reconstruction (R6,800): Combines multiple relatives to reconstruct missing parent's DNA
Immigration Applications
Requires LEGAL test with chain of custody. Department of Home Affairs accepts:
- Paternity/Maternity tests for visa applications
- Sibling/Grandparent tests for family reunification
- Results must be from SANAS-accredited lab with expert affidavit
Adoption Reunions
Sibling test (R5,200) or parent-child test if birth parent located. For legal adoption matters, use legal version.
Inheritance & Estate Disputes
LEGAL test required for court. Grandparentage, avuncular, or sibling tests can establish relationship when parent unavailable.
Legal vs Peace-of-Mind: The Critical Difference
⚠️ Critical Distinction
Peace-of-mind tests have ZERO legal standing. They cannot be used for court, immigration, maintenance, inheritance, or any official purpose. Only legal tests with chain-of-custody are accepted.
| Feature | Peace of Mind | Legal Test |
|---|---|---|
| Sample Collection | Self-collected at home | Supervised by authorized collector |
| Identity Verification | Self-declared | Photo ID + photographs taken |
| Chain of Custody | None | Complete documentation |
| Court Admissible | ❌ No | ✅ Yes |
| Immigration Use | ❌ No | ✅ Yes (DHA accepted) |
| Maintenance Court | ❌ No | ✅ Yes |
| Expert Affidavit | No | Yes, commissioned |
| Price Premium | Base price | +R700 to +R4,000 |
Getting Started
Ready to Order? Here's What Happens Next:
Contact Us
Call +27 71 366 0626 or email info@nativelabs.co.za. We'll confirm the right test and answer questions.
Choose Collection Method
Home kit (peace of mind) or supervised collection at our Sandton facility / mobile phlebotomist (legal).
Provide Samples
Cheek swabs (5 minutes) or blood draw for prenatal. Painless and quick.
Receive Results
Secure encrypted delivery in 2-3 weeks. Express available for additional fee.