| A | B |
|---|
| G1 phase | double in size and organelles double in number |
| S phase | DNA duplicated (chromosomes copied) |
| G2 phase | spindle fibers and centrioles begin to form |
| Prophase | 2 pairs of centrioles seperate and move to opposite ends of the nucleus. |
| Prophase | microtubules will attach and make spindle fibers and SF will attach to the kinetechore |
| Metaphase | chromosomes line up on center plate |
| Anaphase | sister chromatids seperate |
| Telephase | nuclei are reformed and cytokinesis happens |
| Chromatin | DNA protein complex organized into a long thin fiber |
| zygote | egg |
| M phase | includes mitosis and cytokinesis and is the shortest part of the cyle, when the cell divides |
| Interphase | accounts for 90% of the cycle and cells grow by producing proteins and organelles |
| Mitotic spindle | begins to form in the cytoplasm during prophase |
| Spindle MT | starts in centromere |
| Centrosomes | material present in all cells. 2 form spindle poles at the end of prometaphase. |
| Cell plate | in plant cells during cytokinesis |
| G1 checkpoint | restriction point |
| kinases | enzymes that activate or inactivate other proteins by phosphorylating them. |
| cyclin | kinases must be attached to these (protein) |
| MPF | cyclin + Cdk |
| Centrosomes | contains centriols, functions in the formation of MT of the spindle appareatus. |
| Cytokinesis | contraction of the contractile ring of MF. |
