E.coli DNA polymerase III acts on:Group of answer choicesBoth leading and lagging strands of the replication forkThe lagging strand onlyNeither the leading nor lagging strandThe leading strand only

Which is true during DNA replication?Group of answer choicesDNA ligase is the last step of the polymerisation reaction for the lagging strand, but is not used on the leading strand.DnaA binds to regions that are rich in AT as this purine-purine base pairing forms only two hydrogen bonds.The β sliding clamp prevents the dissociation of DNA polymerase III, increasing the length of DNA each polymerase can synthesise.DNA gyrase binds to and applies tension to the lagging strand.

Which is true during DNA replication?Group of answer choicesDNA ligase replaces the nucleotides in the RNA primer with DNA on the newly synthesised strands.RNA primers bound to both the leading and lagging strand are degraded by 5' - 3' exonucleases.DNA polymerase III synthesises the leading strand and DNA polymerase I synthesises the lagging strandPrimase is required to make primers on the lagging strand only

The proofreading activity, to maintain the fidelity of DNA synthesis,Group of answer choicesoccurs after the DNA replication process has been completedis a function of the 3'→5' exonuclease activity of DNA polymerasesis a function of the 5'→3' exonuclease activity of DNA polymerase IIIoccurs only when the DNA polymerase on the lagging strand encounters the previously synthesised fragment

The strand that elongates toward the replication fork.Group of answer choicesboth leading and lagging strandlagging strandleading strandNext

Many segments of these are joined together to make up the lagging strand of newly synthesized DNA.Group of answer choicesprimerOkazaki fragmenttelomereorigin of replicationNext