Genetics addiction Flashcards
1
Q
what are the 3 types of relative
A
1st degree (50%), second degree(25%), 3rd degree (12.5%)
2
Q
What is the correlation between showing same behaviour as relatives
A
positive
3
Q
How can genetics affect addiction
A
- metabolism
- Neurotransmitter levels
- desire to take risks
4
Q
What genes are associated with addiction
A
- A1 variant of DRD2 gene
- ALDH
5
Q
What does A1 variant of DRD2 gene cause
A
Low dopamine receptors so people over compensate for this by engaging in addictive behaviour
6
Q
What does ALDH gene cause
A
Makes alcohol slower to be metabolised so people drink more so are more likely to become addicted
