This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Childhood tumors, Subject name: Pediatrics
Chromosome involved in Wilm's tumor is 
Select and explain. 
A. 11, B. 13, C. 18, D. 22
A: 11
Answer: A: 11 
Explanation: WTl is the best characterized Wilms tumor gene. It is located at chromosome llp13 and encodes for a transcription factor that is critical for normal development of kidneys and gonads. WT2 is localized to a cluster of genes at llpl5. Reference: Essential paediatrics; O.P.Ghai; Childhood Malignancies; Page no: 617