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Why does DNA replication occur within a replication fork and not in its entire length simultaneously?
Why does DNA replication occur within a replication fork and not in its entire length simultaneously?
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The replication fork ensures accurate DNA synthesis by coordinating unwinding, priming, and elongation processes step by step.
Updated On: Jan 13, 2026
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Solution and Explanation
DNA replication occurs at a replication fork due to the following reasons: The fork structure facilitates the gradual unwinding of the DNA strand by helicase. Polymerases can synthesize the new strand sequentially in the 5\( \prime \) to 3\( \prime \) direction.
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