Gametes are sex cells of organisms, haploid in chromosome content that fuse with other haploid cells during fertilization in sexually reproducing organisms.
Purpose of Gamete Formation
Gametes or reproductive cells are always haploid in sexually reproducing organism in order to maintain the chromosomal number constant in the species after getting combined with the gamete from the other partner. The new organism has half the chromosomes from its mother and half from its father. Sexual reproduction also helps in the maintenance of genetic diversity of organisms because each organism has a different combination of genes than either of its parents. For example, in humans, a sperm cell gets fused with an egg cell, producing a zygote that has a unique set of genetic information and correct number of chromosomes.
Types of Gametes
There are two types of gametes in humans, male and female gametes. The male gamete is called sperm and has...
- Gilbert, S. F. (2000). Early development of the nematode Caenorhabditis elegans. In S. F. Gilbert (Ed.), Developmental biology (6th ed.). Sunderland: Sinauer Associates.Google Scholar
- Virant-Klun, I. (2015). Postnatal oogenesis in humans: A review of recent findings. Stem cells and cloning: advances and applications, 8, 49.Google Scholar