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  • Meiosis: Understanding Chromosome Reduction in Sexual Reproduction
    The nuclear division that reduces chromosome number is meiosis.

    Here's why:

    * Meiosis is a specialized type of cell division that occurs in sexually reproducing organisms. It involves two rounds of division (meiosis I and meiosis II), resulting in four daughter cells, each with half the number of chromosomes as the original parent cell.

    * Mitosis, on the other hand, is the type of cell division that produces two daughter cells that are genetically identical to the parent cell. The chromosome number remains the same.

    Key Points about Meiosis:

    * Reduces chromosome number: A diploid cell (2n) with two sets of chromosomes divides into four haploid cells (n), each with one set of chromosomes.

    * Genetic diversity: Meiosis contributes to genetic diversity through crossing over and independent assortment of chromosomes.

    * Essential for sexual reproduction: Haploid gametes (sperm and egg) produced by meiosis combine during fertilization to form a diploid zygote.

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