This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Pathology
[{'content': 'Hereditary retinoblastomas develop the following chromosomal deletion \nSelect and explain. \nA. 13q 14, B. 13p 14, C. 14p 13, D. 14q 13', 'role': 'user'}, {'content': "Answer: A \nExplanation: (A) 13q 14# Deletion of a small number of tightly clustered genes result in a number of genetic disorders termed as microdeletion syndromes.> Some of the important ones that have been asked include: Wilm's tumor-Aniridia complex 2 (WAGR syndrome) IIpI36 Part of (deletion of short arm of chromosome 11 Retinoblastoma 13qI4.116 (deletion of part of long arm of chromosome 13) Prader-Willi syndrome, Angelman syndrome6 15qII-136 (deletion of pa rt of long arm of chromosome 15) DiGeorge's syndrome, Velo-cardiofacial syndrome 22qII6 (deletion of part of long arm of chromosome 22)", 'role': 'assistant'}]