Y chromosome

The Y chromosome is a chromosome that decides the sex in most mammals, including humans. It contains the gene SRY, which triggers 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 egg always carries a single X, while sperms carry either an X or a Y. That is how sex is determined in humans.^[1]

Related pages

• Sex determination
• Karyotype
• Chromosome
• J1 (Y-DNA)

References

1. Bainbridge, David A. 2003. The X in sex: how the X chromosome controls our lives. Harvard.

Other websites

• Genetic Genealogy: About the use of mtDNA and Y chromosome analysis in ancestry testing
• Human Genome Project Information — Human Chromosome Y Launchpad
• On Topic Archived 2012-05-08 at the Wayback Machine — The Y Chromosome - From the Whitehead Institute for Biomedical Research
• Nature — focus on the Y chomosome
• National Human Genome Research Institute (NHGRI) — Use of Novel Mechanism Preserves Y Chromosome Genes
• Ysearch.org - Public Y-DNA database Archived 2011-01-04 at the Wayback Machine
• Y Chromosome Consortium (YCC) Archived 2017-01-16 at the Wayback Machine