3' end 5' end adenine antiparallel bacteriophage base pairing complementary conservative model cytosine deoxyribonucleic acid dispersive model DNA DNA ligase DNA polymerase |
double helix enzyme guanine helicase isotopic labeling lagging strand leading strand mismatch repair nitrogenous base nucleic acid nucleoside triphosphate nucleotide excision repair Okazaki fragment origin of replication |
pathogenic polymerase I polymerase III polynucleotide primase primer proofreading protein purine pyrimidine replication replication bubble replication fork |
ribonucleic acid RNA semiconservative model single-strand binding protein sugar phosphate telomerase telomere template thymine topoisomerase transformation uracil X-ray crystallography |