If we look at the haploid meaning, these cells have only one set of chromosomes. Organisms which consist of haploid somatic cells are only considered haploid organisms. Some organisms produce diploid gametes during reproduction, which fertilize and form a diploid zygote. Such organisms are considered diploid. They contain a single set of chromosomes, which means they have half of the chromosomes as compared to diploid cells. The haploid cells are formed after meiosis and are not genetically identical to the parent cells. These can be found within gametes or sex cells of vertebrates and play an important role in sexual reproduction and genetic diversity. The life cycle stage of a haploid cell is known as the “gametophytic stage”, which is more predominant than the diploid stage. But in the cycle of a pteridophyte, the haploid stage is less prominent as compared to the diploid stage.