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Transcript 
Cell membrane
Nuclear
membrane
Chromatin
material
Nucleolus
Centrosome
Cell Membrane
G1
– cell growth
S – DNA replication
G2 – Prepares for mitosis
Chromosome
Spindle fibers
 1. Chromatin
condensed into
chromosomes
 2. Nucleolus fades and disappears
 3. Centrosomes divides forming 2
centrioles
 4. Nuclear membrane fades and
disappears
Chromosomes
Spindle
Fibers
 1. Chromosomes
in middle of cell
 2. Nuclear membrane and nucleolus are
gone
 3. Spindle fibers formed and attach to
chromosomes
Membrane
Pinches in
Chromatids
Animal cell
 1. Chromosomes
separate as chromatids
move to opposite ends of cell =
Karyokinesis
 2. Plasma membrane pinches inward in
animal cell
 Plant
Cell
 3. Cell plate develops - no pinching
 4. Lacks centrioles
Pinching of the cell
membrane
Nucleolus
Chromatin
Nuclear
Membrane
Centrioles
Cell Membrane
 1. Nuclear
Membrane and nucleolus
reform
 2. One centriole in each new cell
Cell Membrane
Nucleolus
Chromatin
Nuclear
Membrane
Centrioles
 1. Cytoplasm
pinches in half with each
daughter cell having identical set of
chromosomes
 2. Plant Cell creates a cell plate dividing
the cell into daughter cells having
identical set of chromosomes
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