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Il volto può essere lo specchio del DNA. Uno studio spagnolo, pubblicato dalla rivista Cell Reports, ha scoperto che i sosia possono condividere anche caratteristiche genetiche. Non solo simili come gocce d’acqua, ma anche paragonabili per peso, altezza, oltre che per alcuni tratti comportamentali come il tabagismo.
La scoperta si deve al gruppo guidato dal genetista Manel Esteller, dell’Università di Barcellona, che ha messo a confronto 32 coppie di sosia provenienti da tutto il mondo, individuate e fotografate dall’artista canadese Francois Brunelle.
Nel 75% dei casi (25 coppie su 32) la somiglianza dei volti è stata riconosciuta da almeno due software: 16 coppie, in particolare, sono state valutate come somiglianti da tutti e tre gli algoritmi. Grazie all'analisi di campioni di saliva dei partecipanti è stato possibile verificare che queste 16 coppie di sosia hanno una forte somiglianza anche per quanto riguarda il DNA.
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