DNA Replication Urban

enzyme, "unzips" hydrogen bonds between nucleotides, unwinds double helix

• DNA Polymerase

• DNA Helicase

• Ligase

• Topoisomerase

Adds complementary nucleotides to one of the template strands of the original DNA, assembles nucleotides

• DNA Polymerase

• Okazaki Fragment

• Leading Strand

• Lagging Strand

DNA Polymerase moves away from the replication fork, comes off and reattaches to newly formed DNA, adds new nucleotides away from the fork

• Leading Strand

• Lagging Strand

• 5' Prime End

• 3' Prime End

AN enzyme that uses ATP to form bonds, joins fragments that have been annealed

• DNA Primer

• Helicase

• DNA Polymerase

• Ligase

A short nucleic acid sequence that provides a starting point for DNA synthesis

• RNA

• Okazaki Fragment

• Primer

• Topoisomerase

Prevents the helix from becoming supercoiled

• Primase

• Lagging Strand

• Topoisomerase

• Leading Strand

Moving in the same direction as the replication fork, runs 5' to 3' towards the fork

• Leading Strand

• Lagging Strand

• 3' Prime End

• 5' Prime End

Has a phosphate group, the "start"

• 5' end

• 3' end

• leading strand

• lagging strand

Short fragments of DNA formed on the lagging strand during DNA replication

• Okazaki Fragments

• Primase

• Topoisomerase

• Helicase

Enzyme that synthesizes a short RNA segment that serves as a primer for DNA synthesis

• DNA Polymerase

• Primase

• Ligase

• Helicase