المعلومة
Fragile X syndrome:
The most common cause of the inherited mental retardation
The most common cause of the inherited mental retardation
The most common cause of the mental retardation in boys
It includes:
mental retardation
large testicles
prominent jaw
large ears
wide nasal bridge
large head
stereotypical speech and behavior
متلازمة الصبغي الهش x :
اشيع سبب للتخلف العقلي الموروث .
المرجع
Kaplan pediatrics
Wed, 2008-08-27 18:33
qusei
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always characterized by moderate mental retardation in affected males and mild mental
retardation in affected females
.
loss-of-function mutation in the FMR1 gene caused by an increased number of CGG
trinucleotide repeats (typically >200) accompanied by aberrant methylation of the FMR1 gene.
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