The so-called ‘wanderlust gene’ is actually a genetic variation (or allele) called DRD4-7R, which occurs in about 20% of the human population. Researchers believe that people with the DRD4-7R ...

But this social-orientation difference is about 6 times greater among people from both backgrounds who are carriers of two particular alleles of a dopamine-receptor gene known as DRD4, according ...