03-16-2006, 03:24 PM
which one of following situation describes a major risk factor for early-onset familial Alzheimer disease?
1. expansion of CAG trinucleotide repeats on chromosome 4
2. ingestion of 1-methyl-4-phenyl-tetraphydrobioperidine
3. mutations in the genes encoding for presenilins
4. mutations in the SOD1 gene
5. the presence of the E4 isoptype of ApoE
1. expansion of CAG trinucleotide repeats on chromosome 4
2. ingestion of 1-methyl-4-phenyl-tetraphydrobioperidine
3. mutations in the genes encoding for presenilins
4. mutations in the SOD1 gene
5. the presence of the E4 isoptype of ApoE