Here are five key differences between mitosis and meiosis:
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Purpose:
- Mitosis: Primarily for growth, repair, and asexual reproduction; it produces cells for everyday functions.
- Meiosis: Specifically for sexual reproduction; it produces gametes (sperm and eggs) for the purpose of genetic diversity.
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Number of Divisions:
- Mitosis: Involves one division, resulting in two daughter cells.
- Meiosis: Involves two successive divisions (meiosis I and meiosis II), resulting in four daughter cells.
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Chromosome Number:
- Mitosis: Produces diploid daughter cells (same number of chromosomes as the parent cell).
- Meiosis: Produces haploid daughter cells (half the number of chromosomes of the parent cell).
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Genetic Variation:
- Mitosis: Daughter cells are clones of the parent cell, meaning they are genetically identical.
- Meiosis: Daughter cells are genetically varied due to processes such as crossing over and independent assortment.
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Occasion of Occurrence:
- Mitosis: Occurs in somatic (body) cells.
- Meiosis: Occurs only in germ cells (cells that give rise to gametes).
These differences highlight the distinct roles of mitosis and meiosis in the life cycle of organisms.