Videos+(DNA)

media type="youtube" key="dIZpb93NYlw" height="344" width="425" DNA Replication Song (I want it that way) 4min

media type="custom" key="2913201" DNA composition and structure

media type="youtube" key="d1UPf7lXeO8" height="344" width="425" DNA replication and protein synthesis (very good info) 3.5min