Bio1 - DNA replication

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9 Terms

1
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What direction is the leading strand synthesized in?

5’ to 3’

2
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What direction is the lagging strand synthesized in?

3’ to 5’

3
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What does helices do?

Unzips DNA

4
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What does Topoisomerase do?

Reduces strain from twisting force on DNA

5
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What does DNA polymerase do?

Reads the ran primer and places down complementary nucleotides

6
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What does DNA ligase do?

Creates phosphodiester bonds between the nucleotides DNA polymerase places down

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What does DNA primase do?

Adds an RNA primer than DNA polymerase reads

8
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What does telomerase do?

Adds telomeres

9
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Why do Okazagi fragments occur?

Because DNA polymerase can only read in the 5’ to 3’ direction, but lagging strand is 3’ to 5’