Mitosis PPT

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Growth
Replace worn out cells
Repair (healing)
Asexual Reproduction
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Cell grows to full size
& prepares to divide
DNA is COPIED!!!!!
This phase takes the
longest
The PARENT CELL
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First phase of Mitosis
DNA condenses to
form chromosomes &
they become visible (X)
Nuclear membrane
breaks down into
PIECES
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Second phase of
mitosis
Chromosome line up in
the middle of the cell
Chromosomes attach
to the spindle fibers
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The 3rd phase of mitosis
The duplicated
chromosome splits & the
chromatids (chromosome
halves) move to opposite
ends of the cell
◦ Chromatids move “AWAY”
from each other
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4th stage of Mitosis
2 new IDENTICAL
nuclei are formed
Cytoplasm pinches in
the middle to form a
waist
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Cell completely splits &
2 new IDENTICAL cells
are formed
They are called
“Daughter Cells”
◦ “Cytokinesis = Complete”
2 DAUGHTER CELLS
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