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10 Cards in this Set

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Meiosis 1
homologous chromosomes are separated into two daughter cells ; follows stages similar to Mitosis.
homologous chromosomes are separated into two daughter cells ; follows stages similar to Mitosis.
Prophase 1
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.
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.
Metaphase 1
Tetrads line up in the middle, equatorial plane,of the cell
Tetrads line up in the middle, equatorial plane,of the cell
Anaphase 1
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.
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.
Telophase & Cytokinesis 1
nuclear envelope forms ; cytokinesis occurs resulting in two daughter cells. Daughter cells are NOT identical due to crossing over in prophase 1
nuclear envelope forms ; cytokinesis occurs resulting in two daughter cells. Daughter cells are NOT identical due to crossing over in prophase 1
Meiosis 2
sister "recombinant" chrimatids are seperated into four gamete cells; follows stages similar to mitosis.
sister "recombinant" chrimatids are seperated into four gamete cells; follows stages similar to mitosis.
Prophase 2
chromosomes form; nuclear envelope disappears
chromosomes form; nuclear envelope disappears
metaphase 2
chromosomes line up in the middle of the cell at the equatorial plate.
chromosomes line up in the middle of the cell at the equatorial plate.
Anaphase 2
Sister chromatids separate and move away from each other to opposite poles of the cell
Sister chromatids separate and move away from each other to opposite poles of the cell
Telophase & Cytokinesis 2
nuclear envelope forms; Cytokinesis occurs resulting in four genetically different gametes
nuclear envelope forms; Cytokinesis occurs resulting in four genetically different gametes