Researchers in the Johnson group at MIT are study methods of synthesizing macromolecular prodrugs. To synthesize the polymer framework, the researchers employ a ring-opening metathesis polymerization with a Grubbs third generation catalyst. The mechanism is analagous to a standard olefin metathesis reaction, but the monomers are cyclic olefins rather than linear olefins. Answer the following two questions about ring-opening metathesis polymerization. 1) If you add 5 mole percent of Grubbs catalyst, what is the expected degree of polymerization? 2) Is ring-opening metathesis polymerization step-growth or chain-growth polymerization?