Meiosis I (stages)

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Biology

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7 Terms

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Interphase

DNA replicates; Cell produced proteins needed for cell division

  1. Also produced enzymes needed for cell division

2
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Prophase I (early)

Chromosomes condense and become visible

<p>Chromosomes condense and become visible</p>
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Prophase I (Late)

Crossing over occurs, the spindle forms, and the nuclear envelope breaks up

<p>Crossing over occurs, the spindle forms, and the nuclear envelope breaks up</p>
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Metaphase I

Paired homologous chromosomes line up along equator of cell

<p>Paired homologous chromosomes line up along equator of cell</p>
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Anaphase I

Homologous chromosomes separate to opposite poles of cell. Sister chromatids remain joined

<p>Homologous chromosomes separate to opposite poles of cell. Sister chromatids remain joined</p>
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Telophase I

The chromosomes complete their movement.

  1. Nuclear envelopes form around chromosomes, which may temporarily decondense.

  2. The spindle disappears.

<p>The chromosomes complete their movement.</p><ol><li><p>Nuclear envelopes form around chromosomes, which may temporarily decondense.</p></li><li><p>The spindle disappears.</p></li></ol>
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Cytokinesis

May divide cell into two.

<p>May divide cell into two.</p>

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