Transcript The Circle of Life (but with cells instead of Simba)

The Circle of Life (but with cells
instead of Simba)
The Cell Cycle
How to make more Prokaryotes
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Binary Fission
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The cell splits into two parts
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Each part takes a copy of the DNA
Mitosis
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Only in Eukaryotic cells
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Since the nucleus is involved
A process of cell division that forms two new
nuclei
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And each nuclei contains the same number of
chromosomes
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Chromosomes is the fancy name for organized DNA
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Humans have 23 homologous pairs, or 46 total
Produces an exact copy of the “parent” cell
Interphase
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The cell grows,
copying its organelles
and chromosomes

Chromosomes are
copied inside the
nucleus
Prophase
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Stage 1
Chromosomes twist,
coil, and condense
from long strands into
an X-shape
The X is made up of
two crossed
chromatids held
together at the
centromere
Metaphase
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2nd stage
The nuclear membrane
dissolves
Chromatids line up in
the middle of the cell
Imagine a tug of war
game where two
equally strong people
are pulling against each
other
Anaphase
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3rd Stage
Chromatids separate
and move to opposite
sides of the cell
Imagine a tug of war
match, and the
middle of the rope
breaks
Telophase
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Stage 4
A new nuclear
membrane begins to
form around the sets
of chromosomes at
either side
The chromosomes
begin to unwind (from
prophase)
Cytokinesis
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The division of
cytoplasm
In animal cells
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The cell membrane
pinches off
In plant cells

A cell plate forms
between the two
cells, containing the
materials for new cell
membranes and
walls
Mitosis Cell Cycle