What is meiosis?

Meiosis is a type of cell division that produces four genetically different daughter cells. 

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How many divisions take place during meiosis?

There are 2 divisions in meiosis: meiosis I and meiosis II. 

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What is a reduction division?

A reduction division is a division in which the chromosome number in a cell is reduced, typically by half from a diploid number to a haploid number. 

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What is the purpose of meiosis in animals and plants?

The purpose of meiosis is to produce gametes (egg cells and sperm cells). 

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What happens during prophase I of meiosis?

During prophase I, chromosomes condense and homologous pairs of chromosomes pair up


Centrioles migrate to opposite poles and spindle fibres start to form. 


The nucleolus disappears and the nuclear envelope breaks down.

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What happens during anaphase I of meiosis?

During anaphase I, homologous pairs of chromosomes are separated and pulled to opposite poles of the cell. 

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What happens during anaphase II of meiosis?

During anaphase II, centromeres divide to separate each pair of chromatids. The chromatids are pulled to opposite poles of the cell. 

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Give some differences between mitosis and meiosis. 

  1. Mitosis is used for growth and repair, meiosis is used for producing gametes
  2. Mitosis is a type of asexual reproduction, meiosis is involved in sexual reproduction. 
  3. Mitosis produces diploid cells, meiosis produces haploid cells. 
  4. Mitosis produces 2 daughter cells, meiosis produces 4 daughter cells
  5. Mitosis involves 1 cell division, meiosis involves 2 cell divisions
  6. Mitosis does not typically cause variation, meiosis does cause variation

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What happens during metaphase I of meiosis?

During metaphase I, chromosomes line up along the equator of the cell in their homologous pairs. Each chromosome attaches to the spindle by their centromere.

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What happens during telophase I of meiosis?

During telophase I, the chromosomes reach the opposite poles of the cell where they uncoil. A nuclear envelope forms around each set of chromosomes and the nucleolus starts to reform.


After telophase I, the cytoplasm divides to form two cells in cytokinesis.

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