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VS Cell Cycle
Cell Cycle and Cell Division
| Question | Answer |
|---|---|
| Mitosis | cell division for growth and repair |
| cell division that produces two cells that are identical to the original cell | mitosis |
| number of human chromosomes after mitosis | 46 (or 23 pairs) |
| Meiosis | cell division for sexual reproduction |
| cell division that produces four cells that contain half the number of chromosomes as the original cell | meiosis |
| number of human chromosomes after meiosis | 23 (one of each pair) |
| In what kinds of cells does meiosis occur? | reproductive cells (ovaries, testes) |
| In what kinds of cells does mitosis occur? | all body cells except reproductive cells |
| gametes | sex cells (sperm, egg) |
| S phase | when DNA replication (Synthesis) occurs |
| Interphase | cell is carrying out its function in the organism |
| Prophase | first step of mitosis; chromosomes coil up and can be seen because the nuclear membrane breaks down |
| Metaphase | chromosomes line up at the cell equator |
| Anaphase | spindle fibers pull the chromosomes apart |
| Telophase | chromosomes uncoil and nuclear membranes re-form |