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Biology11/26/13
Did you finish and turn in your osmosis (gummy bear or egg) lab report? You will not pass the 9 weeks without it.
2nd, 5th, 7th Mitosis – The what, how, and why
3rd, 4th MitosisCancer & how it happensMitosis Quick Lab
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The Cell Cycle
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Interphase• G1 – 1st growth phase• S – synthesis (copying) of DNA• G2 – 2nd growth phase
• The cell grows and copiesits DNA in preparation fordividing.
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Prophase• The DNA condenses
into chromosomes.• The centrioles start to
build the spindle.
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Metaphase• The spindle fibers line
the chromosomes upin the middle of the cell on the metaphaseplate.
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Anaphase• The centrioles start to
reel in the spindle,pulling the chromosomesapart and sending halfof them to each side of the cell.
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Telophase• Chromosomes begin
to uncoil and return tochromatin.
• Membrane begins to form around the new nucleus.
Cytokinesis• Cell pinches in two,
dividing the cytoplasmand organelles in it evenly between the2 new cells.
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Onion (Allium) Root Tip