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Binary Fission

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Binary Fission
Mitosis
Asexual reproduction in which one organism (cell) Asexual reproduction of cells, usually parts of
divides to form two daughter organisms.
complex organisms.
Occurs in prokaryotes. Some protists and
eukaryotic organelles divide via fission.
Occurs in eukaryotes.
Primary function is reproduction.
Functions include reproduction, repair, and
growth.
A simple, rapid process.
A complex process that requires more time than
binary fission.
No spindle apparatus is formed. DNA attaches to A spindle apparatus is formed. DNA attaches to
the cell membrane prior to division.
the spindle for division.
DNA replication and separation occur at the same DNA replication is completed long before cell
time.
division.
Not completely reliable. Daughter cells
sometimes get unequal numbers of
chromosomes.
High fidelity replication in which chromosome
number is maintained through a checkpoint at
metaphase. Errors occur, but more rarely than in
fission.
Uses cytokinesis to divide cytoplasm.
Uses cytokinesis to divide cytoplasm.
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Binary fission and mitosis are both forms of asexual reproduction in which a parent cell
divides to form two identical daughter cells.
Binary fission occurs primarily in prokaryotes (bacteria)
Mitosis only occurs in eukaryotes (e.g., plant and animal cells).
Binary fission is a simpler and faster process than mitosis.
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Amoeba reproduces by the common asexual reproduction method called binary fission
After replicating its genetic material through mitotic division, the cell divides into two equal
sized daughter cells.
The genetic material is also equally partitioned; therefore the daughter cells are genetically
identical to each other and the parent cell.
In this process, the nucleus of the Amoeba first divides to form two daughter nuclei by the
process of Karyokinesis.
After the nucleus has divided into two, the process of Cytokinesis takes place in which the
cytoplasm in the mother cell divides into two daughter cells.
This leads to the formation of the two daughter Amoebae cell having a nucleus and its own
cell organelles.
Karyokinesis is the process of the division of the nucleus. It corresponds to the separation of
the daughter chromosomes into two daughter nuclei.
1. Parthenogenesis is a form of reproduction in which an egg can develop into an embryo
without being fertilized by a sperm.
 occurs in some plants species, such as roses and orange trees.
 some species of ants, bees, and wasps
 some species of fish, amphibians, birds, and reptiles, but not in mammals
2. Regeneration is the process by which some organisms replace or restore lost or amputated
body parts.
 when a new plant develops from a cut portion of another plant
 when certain worms reproduce by splitting in two, each half then growing what was left
behind.
 Certain species of insects regularly grow back missing legs,
Asexual Reproduction
List of Advantages of Asexual Reproduction
1. It allows for rapid populating.
2. It does not require mobility.
3. It does not need mates.
List of Disadvantages of Asexual Reproduction
1. It hinders diversity
2. It poses some inheritance issues
3. It can lead organisms to being prone to extinction
4. It causes organisms to not being able to adapt
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