This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': "Microdeletion is seen in? \nSelect and explain. \nA. Beta thalassemia, B. Di George syndrome, C. Marfan's syndrome, D. All", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Robbins basic pathology 9th edition page no 237,Heading =Deletion syndrome DiGeorge syndrome is caused by a small interstitial deletion of band 11 on the long arm of chromosome 22', 'role': 'assistant'}]