Explore All Tests

Explore All Tests contains an organized collection of laboratory test articles — blood, urine, stool, disease-specific and uncategorized tests — explained clearly for patients and students.

Infographic explaining why the Fragile X Syndrome Genetic Test is done, showing X chromosome, DNA helix, and key reasons for testing.

Fragile X Syndrome Genetic Test: Meaning, Results & CGG Ranges

Overview The Fragile X Syndrome Genetic Test is a DNA-based test used to identify changes (mutations or expansions) in the FMR1 gene, which is located on the X chromosome. Fragile X syndrome is the most common inherited cause of intellectual disability and autism spectrum disorder (ASD). This test helps detect whether a person carries: Because

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