The process by which a diploid set of chromosomes becomes haploid is

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Meiosis is the process by which a diploid set of chromosomes becomes haploid. During meiosis, the homologous chromosomes pair up, exchange genetic information, and separate into different cells, resulting in four haploid daughter cells. Pollination and fertilization involve the transfer of pollen from one plant to another and the fusion of gametes, but they do not directly result in the chromosome number reduction. Cleavage is a process of cell division in early embryonic development, and mitosis is a process of cell division resulting in two identical daughter cells with the same chromosome number as the parent cell.

The Process by Which a Diploid Set of Chromosomes Becomes