Cytokinesis and Timing in Cell Cycle Warm-up Questions: What are the phases of MITOSIS? What happens during G2 phase of interphase? Cytokinesis and Timing in Cell Cycle Mitotic stages and cell separation

Cytokinesis is the physical separation of the cell into two daughter cells Cytokinesis is not a phase in itself, but instead, it occurs during telophase. In animal cells, cytokinesis is simply the pinching off and separating of the cell into two. In plant cells, the cell wall must be rebuilt. This is done with vesicles containing cell wall material gather and join in the middle to form a cell plate which becomes the cell walls. Cytokinesis

Time Spent in the Stages: Prophase The average eukaryotic cell cycle last for approximately 24 hours. G1 stage of interphase is the longest portion. It lasts, on average, up to 10 hours. Synthesis is the second longest stage in interphase. It typically lasts 9 hours. G2 stage is the shortest portion of interphase. Usually lasting around 4 hours. Time Spent in the Stages: Prophase

The whole process of mitosis only lasts about 45 min to 1 hour in total. Prophase lasts about 15 min total. Metaphase is the longest stage, lasting approx. 20 min. Anaphase is very fast, lasting about 3-5 min. Telophase including cytokinesis lasts about 10-15 min total. Time Spent: Mitosis