Final answer:
Meiosis I is the first division of meiosis, where the diploid cell undergoes one round of chromosome replication and two rounds of nuclear division. The stages of Meiosis I are prophase I, metaphase I, anaphase I, and telophase I, and during each stage, specific events occur to ensure proper genetic recombination and separation of homologous chromosomes.
Step-by-step explanation:
The first division of meiosis is known as Meiosis I. During this step, the diploid cell undergoes one round of chromosome replication and two rounds of nuclear division. The stages of Meiosis I are prophase I, metaphase I, anaphase I, and telophase I. In prophase I, homologous chromosomes pair up and crossing over occurs, leading to genetic recombination. In metaphase I, the homologous pairs align at the center of the cell. In anaphase I, the homologous chromosomes separate and move to opposite poles of the cell. In telophase I, the cell divides into two daughter cells, each containing one set of chromosomes.