| A | B |
|---|
| centromeres | the structures that hold together sister chromatids |
| spindle | the football-shaped structure consisting of this fibers in a dividing cell |
| mitosis | the process by which nuclear material is divided equally between two new cells |
| chromosomes | the dark-staining structures that carry the genetic material |
| cancer | the uncontrolled division of cells |
| sister chromatids | the two halves of a doubled chromosomes structure |
| metaphase | the phase of mitosis in which chrmosomes line up in the equator of the spindle |
| gene | the segment of DNA that controls the production of a protein |
| interphase | the period during which chromosomes duplicate |
| cell cycle | makes up the sequence of growth and division of a cell |
| telophase | the phase of mitosis in which a nuclear envelope re-forms around each set of chromosomes |
| anaphase | the phase of mitosis in which the sister chromatids separate from each other |
| centrioles | the small, dark, cylindrical structures just outside the nucleus |
