《英文msh詞典》Trinucleotide Repeat,Expanded
[入口詞] Trinucleotide Repeat,Expanded
[主題詞] Trinucleotide Repeat Expansion
[英文釋義] 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.