| A | B |
|---|
| mitosis | process in which the nucleus divides to form two identical nuclei. |
| chromosomes | structures in the nucleus that contain hereditary material. |
| asexual reproduction | produces a new organsim that has hereditary material identical to that of the parent organism. |
| interphase | period of growth and development in a cell. |
| prophase | stage of mitosis when duplicated chromosomes become visible and nuclear membrane breaks down. |
| metaphase | stage of mitosis when chromosomes line up across the center of the cell. |
| anaphase | stage of mitosis when duplicated chromosomes seperate and move toward opposite ends of the cell. |
| telophase | stage of mitosis when chromosomes become harder to see and the cell divides into two new cells. |
| fission | occurs when prokaryotic organisms such as bacteria divide into two identical organisms. |
| spindle fibers | threadlike structures that stretch across the cell from centriole to centriole. |
| centromere | a structure that holds the duplicated chromosomes together. |
| centrioles | small structures in animal cells that are a part of cell dividsion. |
| chromatid | DNA strand ina duplicated chromosome |
| chromatin | chromosome and protien complex that forms thick fibers |
