DNA replication enzymes

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Last updated 12:46 AM on 9/8/26
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8 Terms

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Helicase

unzips double helix into single strands

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Primase

attaches RNA primers to give DNA pol. a starting point for DNA synthesis

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Topoisomerase

relieves tension in unwinding backbone of the strands

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Ligase

binds Okazaki fragments on lagging strand to make continuous DNA synthesis

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Polymerase I

pol. for lagging strand, removes temporary RNA primers

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Polymerase III

pol. for leading strand, makes DNA by pulling nucleotides together

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Telomerase

helps cap DNA strand, becomes less efficient with age

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Single stranded binding proteins (SSBs)

holds strands apart by preventing H-bonds from snapping back together