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Prophase II is where the nuclear envelope breaks down. Metaphase II is where chromosomes line up singulary across the middle of the cell. Anaphase II is where sister chromatids are pulled apart and moved to opposite ends of the cell. Telophase II is where the nuclear membrane reform and 4 haploid cells are produced, two from each division.

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Prophase II
Metaphase II
Anaphase II
Telophase II

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diploid cells are body cells like skin, nerve, and bone that have the full number of chromosomes

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haploid cells are sex cells like egg and sperm cells that have half the number of chromosomes

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Crossing over is when homologous chromosomes come very close to each other and exchange portions of their chromatids producing new combinations of alleles.

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Prophase I is where crossing over occurs where homologous chromosomes exchange portions of their chromatids producing new combinations of alleles. Metaphase I is where homologous chromosomes line up across the middle of the cell in pairs. Anaphase I is where spindle fibers pull the chromosomes apart. Telophase I is where the nuclear membrane reforms, two haploid cells are formed.

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homologous chromosomes are similar but not identical because they may have different gene alleles

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Interphase
Prophase I
Metaphase I
Anaphase I
Telophase I