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Interphase
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Prophase I
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Metaphase I
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Anaphase I
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Telophase I
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Prophase II
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Metaphase II
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Anaphase II
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Telophase II
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During this phase Crossing over may occur resulting in increased variety of genetic combinations
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During this stage… Cell is performing daily functions Growing
Copying DNA Performing Photosynthesis and/or Cellular Respiration Creating proteins DNA is in chromatin form
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During this stage… Nuclear membrane is dissolving
Centrioles begin forming spindle fibers DNA is in condensed, chromatid form Homologous pairs find each other and join at centromere Tetrads are present
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During this stage… Spindle fiber is fully formed
Tetrads line up across the center of the cell(s) Homologous chromsomes are still together in the same cell
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During this stage… Tetrads separate at the centromere
Homologous pairs begin separating to opposite poles of the cell
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During this stage… Each pole contains one full set of chromosomes
Each set of chromomes is encircled in a new nuclear membrane Spindle fiber begins to break down Chromatids begin to unwind into chromatin Cytokinesis begins
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During this stage… Interphase is skipped
Nuclear membrane(s) begin to dissolve Centrioles begin forming spindle fibers DNA becomes condensed and thick into chromatid form Sister chromatids are joined at centromeres
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During this stage… Spindle fiber is fully formed
Sister chromatids line up across center of cell Homologous pairs are NO longer in same cell
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During this stage… Sister chromatids break apart at the centromere
Sister chromatids begin to separate to opposite poles of the cell
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During this stage… Each pole contains ½ of a full set of chromosomes
New nuclear membranes from around each chromatid cluster at the poles Chromatids begin unwinding into chromatin form Cytokinesis begins
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