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7 Cards in this Set
- Front
- Back
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Interphase
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same G1, S, G2 as in mitosis
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Meiosis I
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separates homologous chromosomes, becomes haploid, genetic variation occurs
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Prophase I
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nuclear envelope fragments, chromosomes condense, homologous chromosome synapse (yields tetrad), crossing over occurs at chiasmata, spindle apparatus forms
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Metaphase I
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tetrads align at metaphase plate, tetrad number = n
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Anaphase I
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homologous chromosomes separate
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Telophase I and Cytokinesis
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homologs reach poles, clevage furrow forms
each cell is haploid consisting of two sister chromosomes **no longer identical due to crossing over** |
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Meiosis II
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separates sister chromosomes, results in 4 haploid cells (gametes), similar division process as mitosis (although NO DNA replication before meiosis II)
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