Prevents DNA from Unraveling OH OH OCH3 CH3 NH OH Doxorubicin (adriamycin Binds to DNA and inhibits the enzyme topoisomerase II Prevents DNA from Unraveling O O OH OH OCH3 O OH OH O NH2 OH CH3 Doxorubicin (adriamycin) Binds to DNA and inhibits the enzyme topoisomerase II