This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neurodegenerative Diseases, Subject name: Pathology
Alzheimer's disease - associated chromosome is - 
Select and explain. 
A. 2, B. 6, C. 12, D. 19
D: 19
Answer: D: 19 
Explanation: Ans. is 'd' i.e., 19 Chromosomes associated with Alzheimer's diseaseo Early onset disease (30-60 years)o Chromosome 21o Amyloid precursor protein (AAP) o Chromosome 14o Presenilin 1 o Chromosome 1o Presenilin 2o Late onset disease (>65 years)o Chromosome 19o Apolipoprotein E gene (APOE e4)