Cell Division Process of allowing organisms grow and repair tissues 1 cell  2 cells Parent cell  daughter cells

Interphase G1 – normal cell processes (some cells may stay here) S (synthesis) – DNA Replication G2 – organelle multiplication, preparing for cell division

Prophase Chromosomes condense (attach to centromere) Nuclear membrane starts to break up Spindle fibers form at opposite sides of cell

Metaphase Chromosomes move to equator due to attachment of spindle fibers to the centromeres Nuclear membrane completely gone

Anaphase Spindle fibers shortens pulling sister chromatids apart to separate sides of cell Each side has equal numbers of chromosomes

Telophase Cytokinesis: pinching of cell membrane Duplicated cell organelles move to separate sides Nuclear membrane starts to re-form Chromosomes unwind