Meiosis requires that homologous chromosomes align with one another so that crossing over may occur.

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Meiosis is the process of cell division that results in the production of gametes (sperm or eggs) with half the number of chromosomes as the parent cell. During meiosis, homologous chromosomes (one from each parent) pair up and align with each other, allowing crossing over to occur, which increases genetic diversity.

Meiosis Requires That Homologous Chromosomes Align with One Another So