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The genes can make women, more attractive to potential partners. Having a diverse set of genes is beneficial because it also provides more defenses against invading germs. Such genetic ''success'' can also influence the mate choice, says the experts.
When searching for a mate, on the subconscious level, people are seeking out someone with different genes from their own to create offspring with a lot of genetic diversity.
A specific group of genes called the major histocompatibility complex (MHC), a driver of the immune system is able to influence mate choice.
To test if this genetic diversity affected the number of sexual partners a person had, the research team assessed the genetic variability of 74 females and had them fill in a questionnaire about their sex life. those women who had more genetic diversity in their MHC complex reported more sexual partners over their lifetime.
The study has been published in The Journal of Animal Behaviour.
