Download • Individual chromosomes are made up of 2 identical strands of

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Stages of Mitosis
1. Next to each diagram, write the name of the phase and a brief description of what is happening.
Diagram
Name
Description
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PROPHASE
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METAPHASE
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Each chromosome splits in half and
each half moves to opposite poles
(ends of the cell)
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Chromosomes reach opposite poles
Nuclear membrane forms around
each set of chromosomes
Chromosomes begin to decondense
Telophases is followed by
Cytokinesis
ANAPHASE
TELOPHASE
Individual chromosomes are made
up of 2 identical strands of genetic
information.
Chromosomes become visible and
shorten and thicken
Nuclear membrane fades
Spindle forms
Double-stranded chromosomes line
up in the middle of the cell and
attach to the spindle at the
Centromere.
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2. What is interphase?
Interphase is the part of the Cell Cycle in which the genetic material inside the nucleus is
duplicated and the cell grows in size (approximately doubles in size) in preparation for
cell division.
3. What is Cytokinesis?
Cytokinesis is the part of the Cell Cycle which follows Telophase, in which the cell splits
into two daughter cells. The cytoplasm and organelles are divided equally between the 2
new daughter cells.
4. Draw the CELL CYCLE diagram which shows the entire life cycle of a cell.
There are 2 main phases to the Cell Cycle:
1. Interphase
2. Division Phase
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The whole cell cycle of body cells typically lasts from 8 to 24 hours in humans.
As the pie chart shows, the part of the cell during which the nucleus of the cell is dividing (mitosis)
occupies approximately 10% of the time taken for the whole cycle.
The Cytokinesis phase (part of the division phase) takes approximately half of this time.
Most of the cell cycle is the period in which the cell is not dividing (called Interphase).