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GeneTree DNA Testing Center's Grand-parentage DNA Test services are designed to definitively establish the biological relationship between an individual and an alleged grand-parent. Our simple GeneSwab collection kit is fast and easy. The individuals collect DNA and send it to our lab. In less than 2-4 weeks you receive your results in an easy-to-understand format.
Two different types of Grand-parentage Testing :
Single Grand-parentage DNA Analysis: This DNA test includes ONE grandparent, 1 grandchild, and parent (optional, but strongly suggested). The conclusive range for DNA results are either >90% (inclusion) or <15% (exclusion) probabilities. However, results may vary between 1% and 99% accuracy.
Duo Grand-parentage DNA Analysis: This DNA test includes BOTH grandparents, 1 child, and parent optional, but strongly suggested. For the most accurate results in a grand-parentage analysis it is best to include both the alleged grandparents and the child. When both alleged grandparents are included the DNA results are guaranteed to indicate either >99% (inclusion) or 0% (exclusion) probability of Grand-parentage relationship.
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