People who have a close relationship with their DNA are likely to develop an interest in each other, according to research by the University of Texas at Austin.
A team of researchers analysed more than 100,000 pictures taken by people in the United States and Europe and discovered that people with close relationships were more likely to find people of the same sex attractive, while those with more distant relationships were less likely to.
Researchers found that people who have close relationships with their genes tend to have more sexual interest in people of similar DNA, which may reflect how they can relate to each other through the genes.
Researchers said the results may also explain why people in close relationships have a greater chance of having children.
Researchers from the UT Austin’s College of Veterinary Medicine and Human Genetics studied about 60,000 photographs taken by over 500,000 people from a variety of countries, ages and occupations, and then analysed the images in the hopes of uncovering how their DNA may have influenced how they see and approach others.
They found that close relationships can affect the people they see, their sexual attraction and how they approach the world.
The research is published in the journal Current Biology.
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