Mitosis vs. Meiosis

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Mitosis vs. Meiosis
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Meiosis
Mitosis
Meiosis
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Based on the diagram,

• The difference between mitosis and meiosis is
  that mitosis produces two identical daughter
  cells and meiosis produces four genetically
  different daughter cells

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Mitosis
Meiosis
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The numbers

• The cells created from mitosis are diploid or 2n.
  
• The cells created from meiosis are haploid or n
• Definitions
• Diploid (2n) two of each type of chromosome (in
  homologous pair carry the same trait)
• Haploid (n) one of each type of chromosome

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Lets try it

• Human cells have 46 chromosomes.
• Therefore, the diploid number (2n) of chromosomes
  in humans is 46.
• The haploid number (n) of chromosomes in humans
  is 23.

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The reason why mitosis

• To replace other cells that have been damaged or
  worn out
• To allow multicellular organisms to grow
• For asexual reproduction
• Because they get too big!

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The reason why meiosis

• Meiosis results in four cells with half the
  number of chromosomes so that when the sex cells
  (sperm and egg) combine, the original or normal
  number of chromosomes will be restored

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One last thing the where?

• Mitosis occurs in normal body cells (i.e. skin
  cells), and meiosis occurs in sex cells (i.e.
  sperm and egg) only.

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The verdict
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• Lets see mitosis and meiosis in action!