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.