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Cell replication (Meiosis (Homologues cells (Crossing over), Problems can…
Cell replication
Meiosis
Basis for sexual reproduction
Homologues cells
Crossing over
Creates Gametes
creates 4 cells
Problems can lead to birth defects
Example
Trisomy 21
Goes through the cell cycle twice
Mitosis
Asexual reproduction
Finishes with 2 cells
Creates Somatic cells
Problems can lead to cancer
Requires 3 mistakes to result in cancer
Sister Chromatids
Centromere
Example
cut in the skin being repaired
Cell Cycle
Goes though twice
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Interphase
prophase
metaphase
anaphase
telophase
Interphase
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DNA replication
Cytokenisis
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division of the cytoplasm