Similarly, a 2006 study found that the more differences in MHC genes between a romantic couple, the more likely the female partner was to be sexually satisfied and committed to her existing relationship.
Yet, as noted above and as is common for most genetic research, especially as it relates to complex human behaviors such as love and romance, the data supporting genetic attraction is highly inconsistent.
Unlike some direct-to-consumer genetic testing companies (such as those claiming to offer genetically tailored nutritional supplements, which have been subject to enforcement by the Federal Trade Commission for deceptive claims), there is some legitimate science behind the new DNA-matching dating websites.
While genetics seems to play some role in human sexual attraction, it clearly is not the only, or even predominant, factor determining human mate choice.
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