Can this struggling stock turn things around?Ginkgo Bioworks (DNA -3.98%) is a cell programming company that claims to have large addressable markets (for bioengineered products) in multiple industries in which it can play a key role, and that those are worth trillions of dollars in total. But the problem is it may take more than a decade for those markets to reach that kind of size. Investors could require a lot of patience.While there may be a lot of potential for the business in the long run, investors h ...