In fragile X syndrome, the presence of _______ trinucleotide repeats in the fragile site of the X chromosome results in mental retardation.

Name: In fragile X syndrome, the presence of _______ trinucleotide repeats in the fragile site of the X chromosome results in mental retardation.
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Fragile X syndrome is caused by an expansion of more than 200 CGG trinucleotide repeats in the FMR1 gene on the X chromosome, leading to mental retardation and other symptoms.

In Fragile X Syndrome, the Presence of _______ Trinucleotide Repeats