p. 277: model organism

p. 279: totipotent

p. 280: genes

p. 282: bacteriophages

p. 283: retroviruses

p. 284: nucleic acid, purines, pyrimidines, nucleotide, phosphodiester bond

p. 285: Chargaff's rules

p. 286: double helix, base-pairs, antiparallel strands

p. 287: Watson-Crick model

p. 288: complementarity, semiconservative

p. 291: origins of replication, DNA polymerase III

p. 292: primase, RNA primer, leading strand, lagging strand, Okazaki fragments, DNA ligase, semidiscontinuous

p. 293: initiator protein, helicase, single -strand binding protein, topisomerase, gyrase, primasome

p. 294: replication unit, replicon

p. 296: one gene-one enzyme hypothesis, one gene-one polypeptide

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