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Mitosis

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by

Brandon Pezzuto

on 13 April 2016

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Transcript of Mitosis

MItosis
Mitosis (Cell Division)
Susan B. Anthony Middle School
7th Grade Life Science
Mr. Pezzuto
Agenda:
Students will be able to draw a
diagram of a complete Cell Cycle
and be able to explain the events
of each stage.
Interphase:
The Largest portion of the cell cycle
Not a part of Mitosis, prepares cell for division
75% of a cell's life
G1, S, G2
Prophase:
1st phase of mitosis
Replicated DNA condenses
nuclear membrane disappears
micro tubules are present at opposisite ends of the cell.
Metaphase:
the shortest phase of mitosis
chromosomes line up at the middle of the cell (metaphase plate)
microtubules (made from an organelle called centrioles) attach to the centromeres
Anaphase:
microtubules pull the chromosomes apart toward opposite ends (poles) of the cell.
Both pieces of DNA are identical
Telophase:
A nuclear membrane begins to form
Microtubules break down
The cell is almost split in two
Cytokinesis:
The cells are completely divided
Full transcript