Sexual Reproduction
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Cell division G1 and G2 phase | show 🗑
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show | DNA replicaton occurs, cells entering ths phase have twice as much DNA than in the other phases
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M phase | show 🗑
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show | this celluar division produces two diploid daughter cells that are genetically identical
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Meiosis | show 🗑
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Diploid cells | show 🗑
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homologous chromosomes | show 🗑
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show | First the nucleoli disappears and the chromatin condense. Then the nuclear envelope breaks down, lastlymitotic spindle is assembled
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Mitosis: Metaphase | show 🗑
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show | Chromosmoes separate into chromatids. Microtubules connect to chromatids (now chromosomes), shorten and pulls them to opposite polls. Lastly formation of cleave furrow.
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show | New nuclear envelope develops around each pole forming two nuclei. Cytokineis occurs
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show | two copies of each chromosome = 46
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Prophase I | show 🗑
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show | homologous pairs of chromosomes are spread across the metaplate
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Anaphase I | show 🗑
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Telophase I | show 🗑
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show | Nuclear envelope disappears and the spindle developes
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show | Chromosomes allign on metaphase plate centromeres divid, leaving pairs of sister chromatids
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show | Sister chromatides pulled to opposite polls by spindle fibers
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show | Nuclear membrane forms around eahc new cucleous. Four halpoid cells have been produced.
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nondisjuncton | show 🗑
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Created by:
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