Here's an interesting article that also explains how multiple copies of genes can alter certain traits https://www.newscientist.com/article/dn12381-duplicate-ge

Here's an interesting article that also explains how multiple copies of genes can alter certain traits https://www.newscientist.com/article/dn12381-duplicate-genes-help-humans-go-the-extra-mile/ https://www.newscientist.com/article/dn12381-duplicate-genes...