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Mitosis ppt
Copy this ppt for homework notes Make sure you define words from the chapter on MITOSIS used in this ppt
1. What happens during the cell cycle of a cell?
2. Interphase: stage 1
*G1 -‐ growth, protein synthesis, general cell funcFoning
*S -‐ DNA is replicated
*G2 -‐ cell prepares for division
2. Mitosis (nuclear division)
a. Prophase – chromosomes condense -‐ chromaFds visible -‐nuclear membrane dissolves
• b. Metaphase -‐ chromaFds line up along middle of cell (equator)
c. Anaphase -‐ chromaFds pull apart to opposite poles of cell (spindle fibers made in G2 pull chromaFds apart)
d. Telophase -‐ nuclear membranes reappear, cell pinches in to divide in plants the cell plate (wall) forms
Cytokinesis • Cell conFnues to pinch in & cytoplasm divides out—2 new daughter cells are made… both have idenFcal copies of the chromosomes
Review of cell cycle