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DNA Replication

Definition

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.

Analogy

Think of DNA replication like a photocopy machine. You start with one original document (the parent strand of DNA) and end up with two identical copies (the daughter strands of DNA).

Related terms

Semi-conservative replication: This refers to the method in which each strand of the parental DNA serves as a template for new DNA to be synthesized, resulting in two new strands that each contain one old and one new strand.

DNA polymerase: An enzyme that synthesizes new strands of DNA, following the templates provided by the old strands during replication.

Replication fork: The point at which the double-stranded DNA molecule separates into two single strands that serve as templates for replication.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.