Fragile X Syndrome (FMR1) DNA Testing

DNA Analysis with Reflex Test

  1. Fragile X syndrome is an inherited developmental disorder characterized by intellectual and behavioral disabilities
  2. Defects in the FMR1 gene cause Fragile X Syndrome
  3. It is the most common inherited form of mental impairment, affecting 1 in 4000 boys and 1 in 8000 girls
  4. Simple mouth swab DNA test with results in 1 – 2 weeks

About Fragile X Syndrome

About the Fragile X Syndrome DNA Test

The FMR1 gene (fragile X mental retardation 1) encodes FMRP (fragile X mental retardation protein). FMRP is involved in cognitive development and female reproductive functions.

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About Fragile X Syndrome DNA Testing

Fragile X Syndrome DNA Test

What is the FMR1 gene? What changes in the FMR1 gene cause Fragile X Syndrome? What are my risks of passing a defective FMR1 gene to the next generation?

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Get Tested

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Order by Phone: 1-888-828-1899 Monday to Friday, 8AM – 5PM PST (11AM – 8PM ET)

Getting Started

for Healthcare Providers and Hospitals

Receive more information or to get your clinic set to up offer Fragile X Syndrome DNA testing to your patients.


Fragile X Syndrome FAQs

Fragile X Syndrome DNA Test Results

How will I receive my results? How long will testing take? What are the possible results and what are the interpretations for each result type?

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