Suppose that you've been hired by a firm interested in using bacteria to clean up organic solvents found in toxic waste dumps. Your new employer is particularly interested in finding cells that are capable of breaking a hydrocarbon called benzene into less-toxic compounds. How would you select some bacteria that might metabolize benzene as an energy or carbon source, and how would you test them?
:Look in waters or soil polluted with benzene-containing compounds. Put samples from these environments in culture tubes where benzene is the only source of carbon. Monitor the cultures an study the cells that grow efficiently