Helicase

unzips the double helix

dna polymerase III

Adds complementary bases continuously from the 5'-3' direction

primase

places RNA primers/flags starting sequence to mark starting point of DNA polymerase

exonuclease

removes RNA primers afterwards

DNA polymerase I

adds complementary bases to the lagging strand

Topiosomerase

prevents supercoiling of the helix

telomerase

uses RNA to rebuild telomeres(repeating units of TTAGGG that protect the main DNA)

Okazaki fragments

-fragments of complementary dna and rna base pairs on the lagging strand

DNA ligase

covalantly bonds Okazaki fragments together