click below
click below
Normal Size Small Size show me how
ee
eeee
| Term | Definition |
|---|---|
| cell cycle | series of events that cells go through as they grow and divide |
| Interphase | Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases |
| G1 phase | stage of interphase in which cell grows and performs its normal functions |
| S phase | Stage of interphase where DNA is replicated |
| G2 phase | stage of interphase where the cell prepares to divide by copying organelles |
| M phase | The phase of the cell cycle that includes mitosis and cytokinesis. |
| Mitosis | cell division in which the nucleus divides into nuclei containing the same number of chromosomes |
| Prophase | First stage of mitosis, nuclear envelope disappears, chromosomes condense |
| Metaphase | Second phase of mitosis, during which the chromosomes line up across the middle of the cell |
| Anaphase | Third phase of mitosis in which the chromosomes separate and move to opposite ends of the cell |
| Telophase | Fourth stage of mitosis, cells begin to form cleavage furrow (animal) or cell plate (plant) and divide |
| Cytokinesis | Final stage of the cell cycle, cells divide and move apart |
| Chromatid | Each half of the chromosome |
| Centromere | Area where the chromatids of a chromosome are attached |
| Check points | Places in the cell cycle that control whether the cell will divide |
| Cancer | Cells skip checkpoints and divide uncontrollably |