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A 5 y/o mentally retarded boy is brought to the city from a rural community, for evaluation. A detailed history reveals mental retardation in a number of other family members, especially the males. Physical examination is remarkable for a long face with large ears and bilateral enlargement of the testes. This presentation is suggestive of
a. down syndrome.
b. edwards syndrome
c. fragile x syndrome
d. klinefelter syndrome
e. turner syndrome
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c for sure
by the way what is the most common cause of mental retardation in usa?
and what is the most common genetic cause of mental retardation?
lollll now good night
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the answer is c.. fragile x syndrome...(which is due to trinucleotide repeat expansion)
as .. it affects mainly males n is the 2nd most comon cause of mental retardation..... n has typical phenotypic presentation as is mentioned- long face , large ears ...b/l large testis n other features like hyperextensibl joints n mitral valve prolapse....
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yes its C
Zkahdehm i dont know what the most common cause is.. is it Autism..
dont know
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down syn is the most cause
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i was thinking that but wasnt sure if it was down syndrome, it seems to me that autism is taking over , dont know
