The Minor "T" allele is associated with:
- Less empathy for the partner in romantic relationships (TT) (R).
- Decreased generosity and kindness (R).
- Decrease in social behavior (R).
The Major "G" allele is associated with:
- Increased oxytocin levels in the body (R).
- Increased kindness and generosity. In a game that tested how generous people are, TT gave on average 18.3 shekels to the other, while GG or GT gave on average 25 shekels to the other. (R)
- Increased social behavior.