A marker count is one detail about a test, not a complete explanation of its quality. The partner laboratory publishes information about its analysis, while NIST maintains STRBase as a specialist reference resource. A consumer should also ask about the whole testing process.
Read the complete claim
Notice whether a page says a fixed number, “up to” a number or additional analysis when needed. Those phrases are not identical. Ask which description applies to the exact service being purchased. Do not compare two advertisements as though a larger headline number automatically answers every question about a particular family situation.
Connect the number to a real laboratory
Look for the organization performing the work, published credentials and a way to ask questions. A storefront name and a laboratory name may legitimately be different. Our laboratory page identifies the testing partner so that you can check the evidence without treating retail branding as proof of scientific accreditation.
Let the laboratory explain unusual circumstances
Before testing, use the laboratory’s private channel to describe any circumstance it asks about. Avoid putting family histories into a shopping-cart note. When you receive a report, request an explanation of the conclusion rather than attempting to decide paternity from one row of the marker table.
Use a balanced buying checklist
Compare purpose, participants, collection requirements, laboratory identity, total price and support alongside the marker description. Do not turn one technical feature into a promise of a particular result. This article is a guide to better questions, not an interpretation of any person’s DNA.
Sources and further reading
Educational content prepared with AI assistance and editorial source review; it is not presented as professionally medically reviewed. Ask the laboratory about your individual case. Our editorial policy.