| A | B |
| interphase | the portion of the cell cycle between cell divisions |
| what % of life does a cell spend in interphase? | 75% |
| G1 | phase of interphase in which the number of organelles and the amount of cytoplasm increase |
| S | phase of interphase in which the chromosomes in cells replicate |
| replication | the process of copying genetic material |
| sister chromatids | identical copies of each chromosome that result from replication (2) |
| G2 | phase of interphase in which the cell makes organelles and substances in needs for cell divisions |
| how many (main) steps does cell division occur in? | 2 |
| mitosis | first step of cell division. a series of phases in cell division during which the nucleusof a cell divides into two nuclei with identical genetic material. |
| cell division can only occur in what? | eukaryotes |
| cytokinesis | the second step of cell division. the cytoplasm of the cell divides into two new cells, called daughter cells |
| daughter cells | the two new cells created from the division of the cytoplasm in cytokinesis. |