1. What two mental disorders did Keller look at when studying co-morbidity?
- Depression and schitzophrenia
- Depression and G.A.D
- Depression and bi-polar
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2. What percentage of relatives of people with depression also have depression?
3. Who suggested the four aspects that support the belief in a biological basis?
4. How can relatively low concordance rates be explained?
- Variation of genes
- Different neurochemistry
5. What can genes act as?