Microarray technology is a novel technique to identify the Evaluation of differentially expressed gene.This is very useful for the stastical analysis of DNA chip using different stastical software's.This work is attempted to work on microarray analysis on Alzheimer's disease and identify the differentially expressed gene and their reannotation using R and Biocondcutor.R language is freely available and its latest release is Biocondcutor Software. Here, R language and Biocondcutor software is used for the stastical analysis of hippocampus sample of Alzheimer's disease.The data get normalized...