disorders associated with dysfunction of the gastrointestinal tract, such as diarrhea, malabsorption syndrome, colitis, flatulence, dysphagia, gastroenteritis, and peptic ulcer.
a contiguous repetition of the same three nucleotides within a nucleic acid (DNA or RNA). The occurrence of extra trinucleotide repeats in certain genes causes dysfunction, inluding Huntington’s disease and fragile X syndrome.