Across
- 4. responsible for compulsive thoughts
- 7. can be caused by several genes
- 8. identical twins
- 10. a section of dna that codes for protein
Down
- 1. non identical twins
- 2. the gene that regulates dopamine
- 3. relates to motivation and reward
- 5. the gene that regulates serotonin
- 6. relates to mood and happiness
- 9. responsible for obsessive thoughts