Interphase & Mitosis

G₁phase/Gap 1 phase: cell grows and makes proteins

S phase/Synthesis phase: DNA replication occurs, doubling the number of chromosomes

G₂ phase/Gap 2 phase: more cell growth and protein synthesis

Prophase: Chromosomes condense & are visible as sister chromatids (in X's), Nuclear membrane disappears, Spindle fibers form out of centrioles.

Metaphase: Spindle fibers connect to the centromere of each sister chromatid, Chromosomes line up in middle of the cell.

Anaphase: Sister chromatids separate, pulling away from each other and becoming individual chromosomes, Chromatids move to opposite ends of the cell.

Telophase: Chromosomes decondense and start to look like chromatin again (threadlike instead of rodlike), Nuclear membrane reforms around chromosomes at each pole,Spindle fibers break down, Cytokinesis begins.

Cytokinesis: End result = 2 identical cells