sex chromosome in the XY sex-determination system
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.
- ↑ Bainbridge, David A. 2003. The X in sex: how the X chromosome controls our lives. Harvard.
- 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