DNA Replication (1)

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10 Terms

1
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Answer: To make an identical copy of DNA.

What is the purpose of DNA replication?


2
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Answer: Unwinds and separates the two DNA strands.

What does helicase do?


3
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Answer: Makes short RNA primers to begin DNA synthesis.

What does primase do?


4
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Answer: Adds DNA nucleotides to a growing DNA strand.

What does DNA polymerase do?


5
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Answer: Removes RNA primers and replaces them with DNA nucleotides.

What does DNA polymerase I do?


6
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Answer: Joins DNA fragments together by sealing gaps in the sugar-phosphate backbone.

What does DNA ligase do?


7
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Answer: Cuts one DNA strand to relieve twisting tension, allowing the strand to rotate.

7. What does topoisomerase I do?


8
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Answer: Short DNA fragments made on the lagging strand.

What are Okazaki fragments?


9
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Answer: The location where DNA replication begins.

What is an origin of replication?


10
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Answer: 5′ to 3′.

In what direction is new DNA synthesized?