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Published byAbel O’Connor’ Modified over 5 years ago
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Meiosis
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Interphase Same as in mitosis Growth and Replication G1 – cell growth
G2 – replication of chromosoms G3 – growth and preparation for cell division
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Chromosomes
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Karotype
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Prophase I Chromosomes thicken and condense ( become visible)
Centrioles move to the poles Nuclear envelop disappears Homologous chromosomes come together during SYNAPSIS to form a TETRAD Crossing-over occurs
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Metaphase I Chromosomes move to the equator as a tetrad
Spindle fibers attach to chromosome
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Anaphase I Spindle fibers shorten
Homologous chromosomes separate and move to the poles
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Telophase I / Cytokinesis
Cell membrane begins to pinch in Nuclear membrane reappears The cytoplasm divides Formation of cell membrane Results in two haploid daughter cells
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Meiosis II Proceeds just as mitosis with the exception of chromosome replication. THEY DO NOT REPLICATE AGAIN!!! Prophase II Metaphase II Anaphase II Telophase II Cytokinesis
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