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
Gene involved in rett syndrome- 
Select and explain. 
A. P53, B. MECP2, C. RB, D. BRCA
B: MECP2
Answer: B: MECP2 
Explanation: Ans. is 'b' i.e., MECP2o RETT syndrome is a neurodevelopment disorder.o Genes involve most commonly in RETT syndrome is MECP2 (methyl CpG binding protein-2) o Other genes which may also be involved are FOXG1 and CDKL5.