Covered on this test: The history of the discovery of DNA, Chargaff, Franklin, Watson, Crick, the basics of DNA structure, nucleotides, composition of nucleotides, the nitrogen bases, purines and pyrimidines, base pairing rules, histones, nucleostomes, replication of DNA, origins of replication, replication forks, DNA polymerase, helicase, and repairing damaged DNA.