Key differences between Mitosis and Meiosis

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Number of cell divisions

Mitosis: 1 Meiosis: 2

Role in organism life cycle

Mitosis: Asexual reproduction in some eukaryotes; cell division for growth Meiosis: Halving chromosome number in cells that will produce gametes

Makeup of chromosomes in daughter cells

Mitosis: identical Meiosis: Different--various combinations of maternal and paternal chromosomes, paternal and maternal segments mixed within chromosome

Synapsis of homologs

Mitosis: no Meiosis: yes

Number of crossing-over events

Mitosis: none Meiosis: one or more per pair of homologous chromosomes

Number of chromosomes in daughter cells compared with parent cell

Mitosis: same Meiosis: half


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