MITOSIS cell division
-genetic material (blueprints) Long strands:  Chromatin   (spaghetti) DNA DNA
CHROMOSOMES:  Condensed strands,macaroni CHROMATIDS: Duplicated Chromosomes,  double macaroni DNA DNA
MITOSIS Division of the cell to make new cells. Three stages of cell division: Interphase - whole cell Mitosis - nucleus only (4 steps) Cytokinesis -whole cell
INTERPHASE Whole cell-organelles 2x,  DNA replicates, prep.
Most of the cell’s life is spent in interphase. INTERPHASE
MITOSIS 4 PHASES/STEPS NUCLEUS ONLY
PROPHASE Nuclear membrane disappears. Centrioles move to opposite sides of cell. Chromosomes 2x.
PROPHASE
PROPHASE
METAPHASE Chromatids  attach to  spindle fibers  and line up in  center of cell.
METAPHASE M ILITARY LINE-UP
METAPHASE
ANAPHASE Chromatids  go to  opposite  sides of  the cell.
ANAPHASE A WAY
ANAPHASE
TELOPHASE New nuclear  membrane  surrounds  Chromosomes,  which return  to chromatin.
TELOPHASE T WO NUCLEI
TELOPHASE SAME TIME AS CYTOKINESIS
CYTOKINESIS Whole cell Same time as Telophase Chromatin again
CYTOKINESIS Difference between  P & A: Animal pinches in &…..
CYTOKINESIS Difference between  P & A: Plant has cell plate moving out.
CYTOKINESIS 2  C ELLS
Always Changing
 
 
WHOLE PROCESS: CREATION OF 2 NEW IDENTICAL CELLS

Mitosis.ppt