TASK DEFINITION: In this task, you will be given a sentence. You need to reconize the name of the disorder or disease. Disease is a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury. Although there might be several correct answers, you need to write one of them.
PROBLEM:  Previous family studies suggested that these individuals may be compound heterozygotes for the common mutant TSD gene and a rare ( allelic ) mutant gene .

SOLUTION: TSD

PROBLEM:  Identification of a novel mutation of the CPO gene in a Japanese hereditary coproporphyria family .

SOLUTION: hereditary coproporphyria

PROBLEM:  Progression of somatic CTG repeat length heterogeneity in the blood cells of myotonic dystrophy patients .

SOLUTION:
myotonic dystrophy