A researcher has identified a gene linked to a neurodegenerative disease. In individuals that suffer symptoms of this disease, a
t a specific location within this gene the sequence CAG is repeated many times more than it is in unaffected individuals. This disease exemplifies the phenomenon of __________.
Expanding triplet repeats causes a disorder called Triple repeat disorder. It’s a genetic and dominantly inherited neurological disorder and is also classified as an unstable mutation.
Most of these disorders involve a CAG·CTG repeat expansion, such as Huntington disease etc.
