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    GlossaryCAG Repeats

    repeated DNA sequences of cytosine, adenine, and guanine

    CAG repeats refer to sequences of three DNA nucleotides—cytosine, adenine, and guanine—that are repeated multiple times in a row within a gene. These repeats can expand abnormally in certain genetic disorders, such as Huntington's disease, leading to the production of malfunctioning proteins and subsequent cellular damage.

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