DNA Testing Guides, Answers & Resources
Find Answers About Paternity, Legal, Prenatal & Relationship DNA Testing
Explore practical DNA testing guides from GameDay DNA. Find clear information about legal and at-home paternity testing, non-invasive prenatal paternity testing, immigration DNA testing, relationship tests, DNA test costs, sample collection, result timing, and what to expect before you schedule.
Whether you need personal knowledge, a court-ready collection process, or help understanding which family members should participate, our articles are designed to help you identify the right next step. For case-specific legal, court, immigration, or vital-records requirements, always confirm instructions with the requesting agency, court, attorney, or organization.
Blood, Cheek Swabs, or Saliva: Which Sample Does a Paternity Test Need?
Cheek swabs are commonly used for post-birth paternity testing, while prenatal testing requires a maternal blood sample. Learn why sample type alone does not determine accuracy and why spit tubes cannot replace swabs without laboratory approval.
Paternity Test Sample Problems: 6 Collection and Handling Mistakes to Avoid
Not every DNA sample problem is contamination. Learn how handling, recent food or drink, moisture, poor collection, and labeling errors can affect a cheek-swab test—and when to contact GameDay DNA before mailing.
How to Prepare for a Paternity DNA Test: 5 Essential Tips
Before collecting DNA samples, confirm the right test, required participants, collection instructions, and paperwork. These five preparation tips can help you avoid preventable mistakes and understand what happens next.