Chapter 9 - Meiosis

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11 Terms

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meiosis

cell division that produces gametes, sperm and egg cells with half the chromosome of parent cell

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meiosis produces

4 distinct haploid gametes with 23 chromosomes

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prophase 1

crossing over pairs condensed chromosomes

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metaphase 1

independent assortment lining chromosomes at equator

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anaphase/telophase 1

homologs separate into 2 haploid daughter cells, sister chromatids still joined

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prophase II

nuclear envelope breaks, chromosome recondenses

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metaphase II

chromosomes line up along equator

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anaphase/telophase II

sister chromatids separate, move to opposite sides, nuclear envelope reforms

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cytokinesis

cell divides, produce 4 diploid gamete cells

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nondisjunction

chromosomes fail to separate at anaphase

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metastasis

cancer cells spread from og location to other parts