What is Y chromosome?
The '''Y chromosome''' is a [[chromosome]] that decides the sex in most [[mammal]]s, including [[human]]s. It contains the gene ''SRY'', which triggers [[testicle|testis]] development, so making an animal male or female. Normal females have two X chromosomes, and normal males have one X and one Y. An [[Ovum|egg]] always carries a single X, while [[sperm]]s carry either an X or a Y. That is how sex is determined in humans.<ref>Bainbridge, David A. 2003. ''The X in sex: how the X chromosome controls our lives''. Harvard. </ref> == Related pages == *[[Sex determination]] *[[Karyotype]] *[[Chromosome]] *[[J1 (Y-DNA)]] == References == {{Reflist}} == Other websites == * [http://www.cambridgedna.com/genealogy-dna-genetic-genealogy.php Genetic Genealogy: About the use of mtDNA and Y chromosome analysis in ancestry testing] * [http://www.ornl.gov/sci/techresources/Human_Genome/faq/snps.shtml Human Genome Project Information] — Human Chromosome Y Launchpad * [http://www.wi.mit.edu/news/ontopic/ychromosome.html On Topic] {{Webarchive|url=https://web.archive.org/web/20120508143830/http://www.wi.mit.edu/news/ontopic/ychromosome.html |date=2012-05-08 }} — The Y Chromosome - From the Whitehead Institute for Biomedical Research * [http://www.nature.com/nature/focus/ychromosome/index.html Nature] — focus on the Y chomosome * [http://www.genome.gov/11007628 National Human Genome Research Institute (NHGRI)] — Use of Novel Mechanism Preserves Y Chromosome Genes * [http://www.ysearch.org/ Ysearch.org - Public Y-DNA database] {{Webarchive|url=https://web.archive.org/web/20110104031453/http://www.ysearch.org/ |date=2011-01-04 }} * [http://ycc.biosci.arizona.edu/ Y Chromosome Consortium (YCC)] {{Webarchive|url=https://web.archive.org/web/20170116195823/http://ycc.biosci.arizona.edu/ |date=2017-01-16 }} [[Category:Biological reproduction]] [[Category:Chromosomes]] {{biology-stub}}