About Fragile X | Fragile X Association of Southern California

Learn about Fragile X

February 12, 2018February 13, 2018 FSCadmin 2370 Views

What is Fragile X?

Fragile X occurs when there is a change, called a mutation, in a single gene called the FMR1 gene. Every human being has this gene. Some people have only a small change in this gene (referred to as a premutation) and may not show any symptoms associated with Fragile X. Persons with the premutation are … Read more...