| A | B |
|---|
| mitosis | division of the nucleus |
| chromosomes | DNA plus protein; has definite shape when cell division begins |
| chromatid | arm of a chromosome |
| centromere | holds chromatids together |
| centriole | forms spindle fibers used to move the chromosomes around during cell division |
| spindle fibers | threads of protein which attach to centomeres and move chromosomes duriing the stages of mitosis |
| interphase | cell is not dividing; period of g1, s and g2 phases |
| prophase | nuclear membrane dissolves and chromosomes form |
| metaphase | chromosomes line up in the middle of the cell |
| anaphase | chromatids pulled to the ends of the cells |
| telophase | nucleus returns |
| daughter cells | two new cells made by cell division |
| cell cycle | life span of the cell |
| g1 phase | cell grow |
| s phase | chromosomes double |
| g2 phase | cell gets ready to divide |
| cytokinesis | cytoplasm divides and two new cells are formed. |
| cell division | the process of producing two new cells |
