<prompt> Answer this question truthfullyWhat are the genetic and epigenetic causes of Fragile X Syndrome, and what are some associated conditions?  <response>: <reason> Fragile X Syndrome is caused by CGG repeats, which lead to FMR-1 gene repression due to hypermethylation. It is inherited in an X-linked dominant pattern and is associated with MVP mitral valve prolapse and autism. 