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Asexual Reproduction
Reproduction
and development are necessary for the continuation of any
species. Asexual reproduction is a method of
reproduction with all the genetic information coming from one
parent.
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Some Methods of
Asexual Reproduction |
| 1. binary fission -- involves an equal
division of both the organism cytoplasm and nucleus to
form two identical organisms
-- the diagram of the protist at the right is example
of this |
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| 2. budding -- involves one parent dividing
its nucleus (genetic material) equally, but cytoplasm
unequally
-- the diagram of a yeast at the right is an example of
this |

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| 3. sporulation (spore formation) -- is
reproduction involving specialized single cells coming
from one parent
-- the diagram of mold spores being formed at the right
is an example of this |
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Asexual
reproduction is sometimes called cloning. Cloning
is the production of identical genetic copies. All
forms of asexual reproduction are variations of the cell
division process of mitosis. Mitosis
is associated with asexual reproduction, as well as growth and repair in sexually reproducing
organisms.
Mitosis
Mitosis
is the method used for cell division and reproduction in
cells not involved in sexual reproduction.
This process starts with one replication (copying of the chromosome material) and
one division of the
chromosome material. This results in the
chromosome numbers in the two cells produced being the same as in the parent
cell. This process is
represented in the graphic which follows.
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An Overview of the Process of Mitosis |
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2 Key Results of Mitosis
1. The same chromosome number is retained from generation
to generation.
2. Each daughter cell receives an exact copy of the
chromosomes of the parent cell. (clones)
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