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A type of genetic testing typically used to determine biological relationships, particularly paternity, or for health-related genetic investigations. It involves testing DNA from three individuals: the child, the mother, and the alleged father.

Common Uses of Trio DNA Testing:

1. Paternity Testing: The most common use, where the DNA of a child is compared with that of both the mother and the potential father to confirm the biological father.
2. Genetic Disorders: Sometimes, this type of test is used to identify inherited genetic conditions by analyzing the genetic makeup of the parents and child.
3. Legal Purposes: Trio tests may be used in legal situations, such as child custody, immigration, or inheritance cases, where establishing a biological relationship is necessary.
4. Ancestry or Medical Testing: In some cases, trio testing is used to evaluate inherited traits or potential genetic risks for specific conditions.

How It Works:

• Sample Collection: Buccal swabs (cheek swabs) are usually collected from all three participants.
• DNA Analysis: The samples are analyzed in a lab where genetic markers in the child’s DNA are compared to those of the mother and the alleged father.
• Results: A report will indicate whether the alleged father is the biological father (in the case of paternity testing) or highlight any genetic anomalies (for health-related tests).