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10 Cards in this Set
- Front
- Back
Meiosis 1
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homologous chromosomes are separated into two daughter cells ; follows stages similar to Mitosis.
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Prophase 1
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Chromosomes form and each chromosome pairs with its homologous chromosome; called a tetrad (four chromatids) In a tetrad, homologous chromosomes can exchange portions of their chromatids; called crossing over.
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Metaphase 1
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Tetrads line up in the middle, equatorial plane,of the cell
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Anaphase 1
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Homologous chromosomes separate and move away from each other to opposite poles of the cell. Each is genetically different from the original cell due to crossing over.
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Telophase & Cytokinesis 1
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nuclear envelope forms ; cytokinesis occurs resulting in two daughter cells. Daughter cells are NOT identical due to crossing over in prophase 1
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Meiosis 2
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sister "recombinant" chrimatids are seperated into four gamete cells; follows stages similar to mitosis.
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Prophase 2
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chromosomes form; nuclear envelope disappears
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metaphase 2
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chromosomes line up in the middle of the cell at the equatorial plate.
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Anaphase 2
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Sister chromatids separate and move away from each other to opposite poles of the cell
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Telophase & Cytokinesis 2
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nuclear envelope forms; Cytokinesis occurs resulting in four genetically different gametes
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