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Transcript
MITOSIS
MITOSIS
MITOSIS
MITOSIS
INTERPHASE
INTERPHASE
INTERPHASE
CYTOKINESIS
CYTOKINESIS
CYTOKINESIS
CYTOKINESIS
CYTOKINESIS
PROPHASE
PROPHASE
METAPHASE
METAPHASE
TELOPHASE
TELOPHASE
ANAPHASE
ANAPHASE
PROMETAPHASE
PROMETAPHASE
PROMETAPHASE
= Division of cytoplasm
Underway by late telophase
Animal cells-cleavage furrow;
plant cells-cell plate
Two daughter nuclei begin to form
Nuclear envelope begins to reform
Longest phase of mitosis
Shortest phase of mitosis
Nucleoli disappear
Spindle and centrosomes disappear
Microtubules attach to kinetochore
proteins on centromeres
Nuclear envelope fragments
Two sister chromatids separate
and move toward poles
=Nondividing phase of cell cycle
Includes G1, S, G2
Nuclear envelope is visible
One or more nucleoli are visible
Mitotic spindle begins to form
Centrioles move towards poles
Cell leaves cycle & stops dividing
Some can return to cycle with
signal; some never divide
Also called “reverse prophase”
Growth occurs;
Cell is “doing its job”
Most of life spent here
S- DNA makes copy
G2- Centrosomes make copies
Centrosomes appear
Chromosomes line up on equator
Chromosomes spread out into chromatin
Chromatin condenses; Chromosomes first visible
Nonkinetochore microtubules elongate cell
DNA IS LESS CONDENSED AS CHROMATIN
DNA IS MORE CONDENSED AS CHROMOSOMES
DNA IS LESS CONDENSED AS CHROMATIN
DNA IS MORE CONDENSED AS CHROMOSOMES
DNA IS LESS CONDENSED AS CHROMATIN
DNA IS MORE CONDENSED AS CHROMOSOMES
NONDIVIDING PHASE
CELL IS DOING ITS JOB
CELL DIVISION PHASE
NONDIVIDING PHASE
CELL IS DOING ITS JOB
CELL DIVISION PHASE