How would a strain of Escherichia coli look under a microscope if it had a mutation that inactivated the protein MreB compared to a strain that had a fuctional MreB? Discuss two ways that the lack of functioning MreB can affect cell division. Hypothesize the problems a mutant bacterium would have if they were unable to produce functional Min proteins. Would this mutant be easy or difficult to isolate and grow? Explain.