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1) Prophase l
2) Metaphase l
3) Anaphase l
4) Telophase l

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Homologous Chromosomes are chromosome pairs, one from each parent. They are similar but different, because they have different alleles.

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Prophase l: The nuclear envelope breaks down. The chromosomes pair up with their homologous partner. The non-sister chromatids cross-over.
Metaphase l: Homologous chromosomes line up in pairs across the middle of the cell.
Anaphase l: The spindles pull the chromosome pairs apart. One chromosome from each pair moves to the opposite end of the cell.
Telophase l: The nuclear membrane forms again, and the spindle fibers disappear. The cell membrance pinches inward. Two haploid cells form.

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Crossing-over creates genetic diversity. Crossing-over is why siblings have different DNA, except if they are twins.

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Haploid Cells are sex cells such as egg and sperm that have half the number of chromosomes.

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Diploid Cells are body cells such as skin, nerve, and bone that have the full number of chromosomes.

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1) Prophase ll
2) Metaphase ll
3) Anaphase ll
4) Telophase ll and Cytokinesis

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Prophase ll: The nuclear enevelope breaks down and spindle fibers and centrioles appear.
Metaphase ll: Spindle fibers attach to the centromeres, and the chromosomes line up singularly across the middle of the cell.
Anaphase ll: The chromosomes are separated and the sister chromatids are pulled apart and move to opposite ends of the cell.
Telophase ll: The nuclear membrane reforms. The cell membrane pinches inward and two cells form. Four haploid cells are produced.