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How do little elephants grow up to be BIG elephants?
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The process of cell division, during which the
duplicated contents of the cell’s nucleus
divide into two equal parts.
Mitosis has four stages. . .
1.
2.
3.
4.
Prophase is the stage during which sister
chromatids condense and the chromosomes
become visible.
Metaphase is the stage of mitosis in which
chromosomes are aligned across the center of
the cell.
Anaphase is the stage of mitosis in which the
centromere splits apart and the chromatids are
pulled to opposite sides of the cell by spindle
fibers.
Telophase is the stage of mitosis during which
two daughter nuclei are formed.
In humans, the process of mitosis
begins after a sperm fertilizes an
egg…
…and continues your entire life.
1.
2.
3.
4.
Growth
Repair
Replacement
Reproduction
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Following mitosis, cytokinesis must occur:
this is the separation of the two nuclei and
cell contents into two daughter cells (in plant
cells, a cell plate forms during cytokinesis
that helps form the cell wall).
This is not a stage of mitosis but is a
significant event that signifies the end of
mitosis and the start of a new cell cycle.
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Is the continuous sequence of cell growth and
division, including the stages of interphase,
mitosis, and cytokinesis (requires 800
minutes for a full cycle in most cells).
Interphase includes the periods of cell growth
(G1 and G2) and the stage of DNA replication
(S stage).
The Phases of Mitosis
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Animal Mitosis -- Review
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase (after Cytokinesis)
Plant Mitosis -- Review
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase (after Cytokinesis)