Enzymes Function DNA Ligase It helps to join the Okazaki segments of lagging strand DNA polymerase Helps in formation of new strand by new comple-mentary nucleotides RNA polymerase Begins transcription by attaching to promoter of DNA DNA primase Works for the formation of RNA primer at the origin, which initiates replication Helicase Binds to DNA near replication fork and work for unwinding strands of DNA