Most trinucleotide repeat expansion repeats involve expansion of which of the following?

Question

Quizplus · Accepted Answer

Trinucleotide repeat expansions mainly involve the CAG repeat expansion, which is associated with diseases such as Huntington's disease and several spinocerebellar ataxias. GAA repeat expansion is associated with Freidreich's ataxia, and ATG expansion is associated with dentatorubral-pallidoluysian atrophy. Repeat expansions are not limited to codons containing three of the same bases.

Most Trinucleotide Repeat Expansion Repeats Involve Expansion of Which of the Following