![Researchers Discover 40 Genes Related to Biology of Intelligence](https://eng-archive.aawsat.com/wp-content/uploads/2017/05/genes.jpg)
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A DNA double helix is seen in an undated artist’s illustration (Reuters/National Human Genome Research
Institute/Handout)
![Researchers Discover 40 Genes Related to Biology of Intelligence](https://eng-archive.aawsat.com/wp-content/uploads/2017/05/genes.jpg)
Caption:
Municipal workers gesture before spraying insecticide at the neighborhood of Imbiribeira in Recife, Brazil, January 26, 2016. REUTERS/Ueslei Marcelino
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