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Thursday, July 22, 2010

Differences Mitosis and Meiosis



Meiosis Mitosis Hide All
Occurs in:Humans, animals, plants, fungiall organismshide
Produces:four haploid daughter cellstwo diploid daughter cellshide
Genetically:differentidenticalhide
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 (exact copy) with an equal number of chromosomes (One cell becomes two) in haploid cellhide
Chromosome Number:Reduced by half (homologous pairs separate)Remains the samehide
Pairing of Homologues:YesNohide
Function:sexual reproductionCellular (asexual) Reproduction (cell division during which the cell nucleus divides); general growth and repair of the bodyhide
Number of Divisions:2 nuclear and 2 cytoplasmic divisions1 division of the nucleus and 1 Cytokinesishide
Discovered by:Oscar HertwigWalther Flemminghide
Type of Reproduction:SexualAsexualhide
Number of Cells produced:42hide
Creates:Sex cells only: Female egg cells or Male sperm cellsMakes everything other than sex cells (Somatic Cells)hide
Occurrence of Crossing Over:YesNohide
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 Cytokinesishide

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