Fragile X syndrome (FXS) is characterized by moderate to severe intellectual disability,
which is accompanied by macroorchidism and distinct facial morphology. FXS is caused by …

Fragile X syndrome (FXS), which is the most common form of familial mental retardation, is
caused by the expansion of the CGG repeat in the FMR1 gene on the X chromosome …

Fragile X syndrome (FXS) is the most common cause of hereditary intellectual disability and
the second most common cause of intellectual disability of genetic etiology. This complex …

Summary Fragile X syndrome (OMIM# 300624) is caused by the expansion of a CGG
trinucleotide repeat found in the 5′ untranslated region of the X‐linked FMR1 gene …

Fragile X syndrome is considered the most common heritable form of X‐linked intellectual
disability (ID). The syndrome is caused by silencing of the fragile X mental retardation 1 …

Fragile X syndrome is the most frequent hereditary cause of mental retardation after Down
syndrome. Expansion of CGG repeats in the 5′ UTR of the fragile X mental retardation …

Fragile X syndrome is the most common cause of inherited mental retardation; it is caused
by expansion of CGG repeats in the first exon of the FMR1 gene. The number of CGG …

Fragile X Syndrome (FXS) is a neurodevelopmental disorder caused by dynamic mutations
of a CGG repetition segment in an X chromosome's single gene. It is considered the leading …

The (CGG) n repeat size distribution in the FMR1 gene was studied in healthy individuals:
80 X chromosomes of Mexican Mestizos from Mexico City and 33 X chromosomes of …

OBJETIVO En este capítulo el objetivo principal es que el alumno sepa que en ciertas pobla-
ciones humanas algunas enfermedades se presentan con más frecuencia que otras, y que …