Trinucleotide Repeat Expansion |
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| Expanded Trinucleotide Repeat; Expanded Trinucleotide Repeats; Expansion, Trinucleotide Repeat; Expansions, Trinucleotide Repeat; Repeat Expansion, Trinucleotide; Repeat Expansions, Trinucleotide; Repeat, Expanded Trinucleotide | |
| An increased number of contiguous trinucleotide repeats in the DNA sequence from one generation to the next. The presence of these regions is associated with diseases such as FRAGILE X SYNDROME and MYOTONIC DYSTROPHY. Some CHROMOSOME FRAGILE SITES are composed of sequences where trinucleotide repeat expansion occurs. | |