An employee of the Boston biotech company Ginkgo Bioworks runs a gene sequencing machine through its paces. The company synthesizes thousands of genes a month, which are then inserted into cells that become mini factories of useful products.

An employee of the Boston biotech company Ginkgo Bioworks runs a gene sequencing machine through its paces. The company synthesizes thousands of genes a month, which are then inserted into cells that become mini factories of useful products.