Contributors
1. Phakathi
2. Choong,
3. guest0a84f2f.
Have your
body
in the pass
six months?
Tall/Weight
Are
you
taller?
Did your
grow?
Clip your
toenails?
Broken a bone
recently?
Wound – how
does your
body
itself?
repair
Do you wonder why?
Mitosis
Definition:
To create two identical daughter
cells that are genetically
identical to the parent cells
Mitosis conserves chromosome
number by allocating replicated
chromosomes equally to each of the
daughter nuclei.
Chromosome
Continues
 Mitosis is a process of cell division
Goal = production of 2 daughter cells.
The daughter cells are identical ...
Continues
 Mitosis produced the somatic cells that
now make up your body and is also the
means by which your body continu...
Acronym for MITOSIS
IPMAT
Interphase
Prophase
Metaphase
Anaphase
Telophase
Phases
 Interphase
 Prophase
 Promatophase
 Metaphase
 Anaphase
 Telophase
 A nuclear envelope
bounds the nucleus.
 Chromosomes that
were duplicated during
S phase cannot be
seen individually
bec...
The cell cycle
Continues
 Two centrosomes have formed by
replication of a single centrosome.
Continues
In animal cells, each centrosome
features two centrioles.
Two Centrosomes have formed by replication of a
single centrosome.
In animal cells, each centrosome features two centrioles
Continues
The nucleus contains one or more
nucleoli.
The chromatin fibers
become more tightly
coiled. The nucleoli
disappear.
Continues
Each duplicated chromosome
appears as two identical sister
chromatids joined together at their
centromeres and ...
Continues
The mitotic spindle begins to form.
The spindle is composed of the
microtubules and centrosomes that
extend fro...
Continues
The centrosomes move away from each
other, pushed away by the lengthening
microtubules between them.
The nuclear envelope
fragments. The
microtubules extending
from each centrosome
can now invade the
nuclear area.
Continues
The chromosomes have become even more
condensed. Each of the two chromatids of each
chromosome now has a protein...
Continues
Some of the microtubules attach to the
kinetochores, becoming “kinetochore microtubules”
that push and pull the ...
Continues
Non-kinetochore microtubules interact
with those from the opposite pole of the
spindle.
Metaphase is the
longest stage of mitosis,
and lasts about 20
minutes. The
centrosomes are now at
opposite poles of the
ce...
Continues
The chromosomes line up on the
metaphase plate, an imaginary plane that
is equal distance between the spindle’s
...
Continues
The kinetochores of the sister chromatids
are attached to kinetochore microtubules
reaching from opposite poles
Anaphase is the
shortest stage of
mitosis, and lasts only
a few minutes. When
the cohesion proteins
are cleaved, anaphase
...
Continues
The two daughter chromosomes begin moving toward opposite ends of
the cell as the kinetochore microtubules begin...
Continues
The cell elongates as the non-kinetochore
microtubules lengthen. By the end of anaphase, the two
ends of the cel...
Continues
Nucleoli reappear.
The chromosomes
become less
condensed. Mitosis is
complete.
Continues
Twodaughter nuclei form in the cell.
Nuclear envelopes are formed from the fragments of the parent cell’s
nuclea...
Thedivision of the cytoplasm is
usually almost complete by late
telophase, so the two daughter cells
appear shortly after ...
Continues
Inanimal cells, cytokinesis involves the
formation of a cleavage furrow, which
pinches the cell in two
Mitosis in general
Somatic cells
(all body cells except gamete cells)
Reference list
 Phakathi, N. 2013. Life science grade 10: mitosis
cell division. http://www.slideshare.net/fundos/life-
s...
Mitosis presentation final
Mitosis presentation final
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Mitosis presentation final

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learn more about mitosis and the processes that are taking place.

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Mitosis presentation final

  1. 1. Contributors 1. Phakathi 2. Choong, 3. guest0a84f2f.
  2. 2. Have your body in the pass six months? Tall/Weight
  3. 3. Are you taller?
  4. 4. Did your grow?
  5. 5. Clip your toenails?
  6. 6. Broken a bone recently?
  7. 7. Wound – how does your body itself? repair
  8. 8. Do you wonder why?
  9. 9. Mitosis Definition: To create two identical daughter cells that are genetically identical to the parent cells
  10. 10. Mitosis conserves chromosome number by allocating replicated chromosomes equally to each of the daughter nuclei.
  11. 11. Chromosome
  12. 12. Continues  Mitosis is a process of cell division Goal = production of 2 daughter cells. The daughter cells are identical to one another and to the original parent cell.
  13. 13. Continues  Mitosis produced the somatic cells that now make up your body and is also the means by which your body continues to generate new cells to replace dead and damaged ones.
  14. 14. Acronym for MITOSIS IPMAT Interphase Prophase Metaphase Anaphase Telophase
  15. 15. Phases  Interphase  Prophase  Promatophase  Metaphase  Anaphase  Telophase
  16. 16.  A nuclear envelope bounds the nucleus.  Chromosomes that were duplicated during S phase cannot be seen individually because they have not yet condensed.
  17. 17. The cell cycle
  18. 18. Continues  Two centrosomes have formed by replication of a single centrosome.
  19. 19. Continues In animal cells, each centrosome features two centrioles.
  20. 20. Two Centrosomes have formed by replication of a single centrosome. In animal cells, each centrosome features two centrioles
  21. 21. Continues The nucleus contains one or more nucleoli.
  22. 22. The chromatin fibers become more tightly coiled. The nucleoli disappear.
  23. 23. Continues Each duplicated chromosome appears as two identical sister chromatids joined together at their centromeres and along their arms by cohesion's
  24. 24. Continues The mitotic spindle begins to form. The spindle is composed of the microtubules and centrosomes that extend from them. Shorter microtubules that extend from the centrosomes are called asters.
  25. 25. Continues The centrosomes move away from each other, pushed away by the lengthening microtubules between them.
  26. 26. The nuclear envelope fragments. The microtubules extending from each centrosome can now invade the nuclear area.
  27. 27. Continues The chromosomes have become even more condensed. Each of the two chromatids of each chromosome now has a protein structure located at the centromere called a kinetochore
  28. 28. Continues Some of the microtubules attach to the kinetochores, becoming “kinetochore microtubules” that push and pull the chromosomes back and forth.
  29. 29. Continues Non-kinetochore microtubules interact with those from the opposite pole of the spindle.
  30. 30. Metaphase is the longest stage of mitosis, and lasts about 20 minutes. The centrosomes are now at opposite poles of the cell.
  31. 31. Continues The chromosomes line up on the metaphase plate, an imaginary plane that is equal distance between the spindle’s two poles. The chromosome’s centromeres lie on the metaphase plate
  32. 32. Continues The kinetochores of the sister chromatids are attached to kinetochore microtubules reaching from opposite poles
  33. 33. Anaphase is the shortest stage of mitosis, and lasts only a few minutes. When the cohesion proteins are cleaved, anaphase begins. This allows the two sister chromatids of each pair to part.
  34. 34. Continues The two daughter chromosomes begin moving toward opposite ends of the cell as the kinetochore microtubules begin to shorten. The chromosomes move centromere first because the microtubules are attached to the centromeres. They travel at about 1 micrometer per minute.
  35. 35. Continues The cell elongates as the non-kinetochore microtubules lengthen. By the end of anaphase, the two ends of the cell have complete and equal collections of chromosomes.
  36. 36. Continues
  37. 37. Nucleoli reappear. The chromosomes become less condensed. Mitosis is complete.
  38. 38. Continues Twodaughter nuclei form in the cell. Nuclear envelopes are formed from the fragments of the parent cell’s nuclear envelope and other portions of the endomembrane system.
  39. 39. Thedivision of the cytoplasm is usually almost complete by late telophase, so the two daughter cells appear shortly after the end of mitosis.
  40. 40. Continues Inanimal cells, cytokinesis involves the formation of a cleavage furrow, which pinches the cell in two
  41. 41. Mitosis in general
  42. 42. Somatic cells (all body cells except gamete cells)
  43. 43. Reference list  Phakathi, N. 2013. Life science grade 10: mitosis cell division. http://www.slideshare.net/fundos/life- science-grade-10. Accessed 06 March 2014.  Choong, R. 2010. PowerPoint mitosis 1. http://www.slideshare.net/rchoong/powerpoint- mitosis-1. Accessed 06 March 2014.  guest0a84f2f. 2009. cell division by mitosis. http://www.slideshare.net/guest0a84f2f/cell- division-by-mitosis. Accessed 06 March 2014.

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