Which of the following gene is associated with Alzheimer's disease ?: (A) APOE1, (B) APOE, (C) APOE3, (D) APOE4
Answer is D. Alzheimer's disease is caused by mutation in :

APOE4 gene
Presenilin 1 : Chromosome 14
Presenilin 2 : Chromosome 1
APP4 ( Amyloid precursor protein - 4 ) : Chromosome 21