| A | B |
|---|
| cell cycle | the life cycle of a cell; in eukaryotes it consists of chromosome duplication, mitosis, and cytokinesis |
| chromosome | a coiled structure of DNA and protein that forms in the cell nucleus during cell division |
| binary fission | the simple cell division in which one cell splits into two; used by bacteria |
| homologous chromosomes | chromosomes with matching information |
| chromatid | identical chromosome copies |
| centromere | the region that holds chromatids together when a chromosome is duplicated |
| mitosis | nuclear division in eukaryotic cells in which each cell receives a copy of the original chromosomes |
| cytokinesis | the process in which cytoplasm divides after mitosis |
