Explain how the chromosome number is halved during meiosis.

Meiosis is formed of meiosis I and meiosis II. You start with a diploid cell (2n). The DNA is replicated in this diploid cell and recombination occurs, where the two chromosomes may swap over bits of DNA.Meiosis I: This cell then divides into two cells. Each still 2n/ diploid.Meiosis II: These two daughter 2n cells then divide again into 4 haploid (n) cells. These are gametes.