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8 Cards in this Set
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gamete =
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germ-cell
either sperm or egg |
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only the spermatogonium and the oogonium undergo meiosis
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all other cells are somatic cells and undergo mitosis only
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prophase 1
(after replication of chromosomes) |
homologous chromosomes line up alongside each other,
cross-over occurs tetrad, chiasma = shape they take when crosing over occurs |
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metaphase 1
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tetrads align at the center
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anaphase 1
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homologues are separated from their partners
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telophase 1
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nuclear membrane reforms, cytokinesis occurs
=> new cells are now haploid, w/ 23 replicated chromosomes |
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incomplete dominance =>
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a blending of the two alleles
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co-dominance =>
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BOTH expressed at the same time
like with AB blood types NOT a blending like with incomplete dominance |
