Steps of DNA Replication

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9 Terms

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Origins of replication

The specific points where DNA replication begins, resulting in the formation of replication forks.

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Replication forks

Y-shaped areas formed when the two strands of DNA open up at the origins of replication.

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Helicase

The enzyme responsible for unwinding and uncoiling DNA during replication.

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Topoisomerase

An enzyme that relieves the stress on DNA strands caused by the unwinding process at the replication forks.

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Primase

The enzyme that attaches RNA primers to the DNA strand to initiate the replication process.

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Elongation

The process in DNA replication where new DNA strands are synthesized in the 5’ to 3’ direction.

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Ligase

An enzyme that glues together Okazaki fragments on the lagging strand during DNA replication.

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Leading strands

The DNA strand that is synthesized continuously in the direction of the replication fork.

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Proofreading

The process of correcting mistakes in newly synthesized DNA and removing introns.