Biology 11.1 Replication of DNA

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  • Created by: Anna
  • Created on: 21-04-13 16:05

Cells that make up organisms derived from existing cells by process of division.

Cell division occurs in two main stages:

  • Nuclear division = process of nucleus dividing - either by meiosis or mitosis.
  • Cell division = process of whole cell dividing.

Before a nucleus divides, DNA must be replicated - ensures daughter cells have genetic info to produce enzymes and other proteins.

Process of DNA replication = very precise, cells must be identical to original.

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