OCD

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