Acell of the testes in men or ovaries in women duplicates its chromosomes and then divides twice during thus forming four cells, each of which has only half the genetic material of the parent cell.

Meiosis

Explanation:

Meiosis is a cell division that results from sexual reproduction where half the chromosome of each parent cell contribute its genetic make up resulting in four haploid, genetically different gamete, cells. These are sex cells that determines the gender of a baby.

As part of this process DNA replication first occurs, followed by the two cell divisions, meiosis I and meiosis II, giving rise to four haploid daughter cells different from their parent cells.