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GETTY IMAGES / ISTOCKPHOTO / VADIMGUZHVA
Genes play a role in determining the beauty of a person's face, but this role varies according to the sex of the person.
Genes play a role in determining the beauty of a person's face, but this role varies with the sex of the person, according to a new study by Qiongshi Lu and his colleagues at the University of Wisconsin -Madison, in the United States. whose results are detailed in an article published this Thursday in "PLOS Genetics".
Humans tend to worry about beauty: The attractiveness of a person is related to academic achievement, professional success and economic mobility. But despite its importance, scientists know little about the genetic basis of a pretty face.
In current work, the researchers conducted a genome-wide association study using genetic information from 4,383 individuals to identify parts of the genome related to facial beauty.
Volunteers evaluated the photos of the directory according to the attractiveness of the participants of European descent and compared the scores with the genetic information of each person. Scientists identified several genes related to facial attractiveness, but their roles and relationship to other human traits varied by gender.
In women, some beauty-related genetic variations also appeared to be associated with genes that affect body mass, whereas in men, variants were linked to genes that affect blood cholesterol levels.
THERE IS NO MASTER GENE DETERMINING THE PHYSICAL ATTRACTION
The study provides new information on the genetic factors that underlie the attractiveness of the face and highlights the complex relationships between beauty and other human traits. "Like many other human traits, there is no" master gene "to determine the attractiveness of a person – observes the author Qiongshi Lu – instead of This is most likely associated with a large number of genetic components with low effects Interestingly, sexual specificity is a recurrent pattern observed in almost all of the analyzes in our study. "
The researchers acknowledge, however, that their findings are based on a homogeneous group of individuals of the same age and ethnicity. They propose that future analyzes that include a larger sample of people of different ages and populations will improve our understanding of this highly valued human trait.
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