Matching Pairs DNA Replication Matching GameOnline version Test your knowledge of DNA replication with this fun matching pairs game! by Faith Kollie 1 Leading strand (5'-3') 2 Ligase 3 Replication fork 4 Telomerase 5 DNA replication 6 Helicase 7 DNA Polymerase 8 Lagging strand (3'-5') 9 Okazaki fragments 10 Origin of Replication 11 Gyrase 12 Nuclease 13 Primase Untwists double helix at replication fork separating them . Used by RNA to add primer . The area where the replication of DNA will be taking place Wind DNA helix back up . Joins sugar and phosphates of Okazaki fragments; acts as a glue . Replicates away from replication fork in fragments . The fragments that grow on the lagging strand in a 5' to 3' .direction Adds nucleotide to new strand; proofreads as nucleotides are added; removes error and adds correct nucleotide . Replication toward replication fork . One strand being replicated into two identical strands . Lengthens telomeres; protects the ends of DNA . Cuts out damaged DNA segments . Site where replication begins; specific nucleotide sequence .