mrcpsych-0754

You are requested to conduct a home visit for a 35-year-old male patient who is experiencing depression. He also complains of poor coordination and you observe that he has an unsteady gait. During the consultation, you learn that his father passed away at the age of 55 due to a degenerative disease and had exhibited abnormal jerky movements for a few years. Based on this information, which of the following trinucleotide repeat disorders would you suspect the most?