This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': "Gene instability associated with malignancy is seen in - \nSelect and explain. \nA. Klippel fiel syndrome, B. Ataxia telangiectasia, C. Marfan'g syndrome, D. EDS", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Ataxia telangiectasiaSyndromes of defective DNA repair have such a high level of chromosomal instability that they are known as chromosome-breakage syndromes or chromosomal instability syndromes.", 'role': 'assistant'}]