Key differences, features, and comparative analysis of Phase and What happens.
| Phase | What happens | DNA |
|---|---|---|
| G₁ (Gap 1) | Cell is metabolically active, grows continuously, makes RNA & proteins. No DNA replication. | 2C · 2n |
| S (Synthesis) | DNA replication — DNA amount doubles. In animal cells the centriole also duplicates in the cytoplasm. | 2C→4C · 2n |
| G₂ (Gap 2) | Proteins (esp. tubulin for spindle) are synthesised; cell grows and gears up for mitosis. | 4C · 2n |
This comparison table is part of the chapter notes for Cell Cycle & Cell Division. Get complete notes, flashcards, active recall sheets, and test prep modes:
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