| A | B |
|---|
| organ system | multiple organs work together to form this |
| prophase | first and longest phase of mitosis |
| sister chromatid | each duplicated chromosome is made up into two halves |
| spindle | football shaped structure consisting of microtubules |
| telophase | final phase of mitosis |
| tissue | groups of cells working together forms this |
| Cancer | malignant growth resulting from uncontrolled cell division |
| gene | segment of DNA that controls the production of a protein |
