What is Mitosis?

Mitosis:
A stage in a cell cycle where cellular reproduction happens by dividing into two identical daughter cells that are genetically same as the parent cell. There are same number of genes and chromosomes in the nuclei of daughter cells.

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What is Meiosis?


Meiosis:
Special cellular division that produces four daughter cells with different combinations of genes and 50% of chromosomes of the parent cell.

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Meiosis vs Mitosis


Meiosis
Mitosis
Produces:
Four haploid daughter cells
Two diploid daughter cells
Steps:
The steps of meiosis are Interphase, Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II and Telophase II.
The steps of mitosis are Interphase, Prophase, Metaphase, Anaphase, Telophase and Cytokinesis
Discovered by:
Oscar Hertwig
Walther Flemming
Genetically:
Different
Identical
Cytokenesis:
Occurs in Telophase I & Telohpase II
Occurs in Telophase
Number of Divisions:
2
1
Pairing of Homologues:
Yes
No
Type of Reproduction:
Sexual
Asexual
Function:
Sexual reproduction
Cellular Reproduction & general growth and repair of the body
Chromosome Number:
Reduced by half
Remains the same
Karyokenesis:
Occurs in Interphase I
Occurs in Interphase
Centromeres Split:
The centromeres do not separate during anaphase I, but during anaphase II
The centromeres split during Anaphase
Occurrence of Crossing Over:
Yes, Mixing of chromosomes (synapse)
No
Occurs in:
Humans, animals, plants, fungi
All organisms
Number of Daughter Cells Produced:
4 haploid cells
2 diploid cells
Creates:
Sex cells only: Female egg cells or Male sperm cells
Makes everything other than sex cells
Definition:
A type of cellular reproduction in which the number of chromosomes are reduced by half through the separation of homologous chromosomes in a diploid cell.
A process of asexual reproduction in which the cell divides in two producing a replica, with an equal number of chromosomes in haploid cell
Similarities:
Chromosomes Duplicate
Relative Positioning of chromosomes same at each stage




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Meiosis Square Dance