Unit 3: The Continuity of Life
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Chapter 9
Mitosis
Review
Prokaryotes reproduce by DNA
followed by
fission.
Eukaryotic DNA is packaged into
composed of
pairs:
one chromosome on each pair is inherited from each parent.
Each
chromosome
may consist of sister
attached by a
.
In the nucleus, the chromosomes are
composed
of
, a coiled complex of DNA and
proteins.
There are two type of eukaryotic cell division:
, which occurs in
cells, and
, which occurs in
cells.
Mitosis is part of a
cell
, where cell growth and DNA
occurs during an
, when chromosomes are extended and not easily visible.
Cell
division
takes place in two steps: nuclear division occurs during
(karyokinesis) and cytoplasmic division occurs during
.
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Feb 20, 2010
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