of mitosis is divided into 6 stages. The Interphase, Prophase,
Metaphase, Anaphase, Telophase, and cytokinasis. At Interphase,
there is only one cell, but after cytokinasis there are two
can take place, the cell need to store enough energy to drive the
chemical processes during the cell division. During this period of
time, there is intense cellular activity. The cell grows in size.
The length of the grow phase varies between a few hours to a few
months. We the cell has stored enough energy, it is ready to
following pictures shows a series of steps of how chromosomes
divide. Note that for simplicity, only a few chromosomes are
happens at these stages?|
has replicated, but has not formed the condensed structure
of chromosome. They remain as loosely coiled chromatin.
nuclear membrane is still intact to protect the DNA
molecules from undergoing mutation.
DNA molecules progressively shorten and condense
by coiling, to form chromosomes. The nuclear membrane and nucleolus are no
The spindle apparatus has migrate to opposite poles of the cell..
spindle fibres attach themselves to the centromeres of the
chromosomes and align the the chromosomes at the equatorial
The spindle fibres shorten and the centromere splits, separated
sister chromatids are pulled along behind the centromeres.
The chromosomes reach the poles of their respective spindles.
Nuclear envelope reform before the chromosomes uncoil. The
spindle fibres disintegrate.
This is the
last stage of mitosis. It is the process of splitting the daughter
cells apart. A furrow forms and the cell is pinched in two. Each
daughter cell contains the same number and same quality of
- Significance of