Scientists have discovered why married couples often look alike

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May 24, 2017 21:07
Scientists from Boston University have traced the tendencies for choosing a spouse people have had in the last 60 years, and discovered that people were before more likely to choose a genetically similar partner. The results of their study have been published in the journal PLOS Genetics.

According to the scientists, if the husband and wife look like each other, it is not always a coincidence. They think that people were inclined to choose a partner who was genealogically closer.

The scientists studied genetic similarity between spouses in three generations. They analyzed data on 879 married couples which had been collected since 1948. People from North and South Korea, they found, as well as Ashkenazi Jews primarily had chosen genetically close partners.

However, in the following two generations they were less likely to choose a spouse with similar genes. The results of this research show us how demographic regularities have changed in the last 60 years.