Fragile X syndrome's severity increases as it passes from one generation to the next.

Name: Fragile X syndrome's severity increases as it passes from one generation to the next.
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Fragile X syndrome is caused by an expansion of the CGG repeat in the FMR1 gene. With each generation, the number of repeats tends to increase, resulting in more severe symptoms in affected individuals. This is known as anticipation and is a common feature of trinucleotide repeat disorders like fragile X syndrome.

Fragile X Syndrome's Severity Increases as It Passes from One