Geneticists found sex-related genes escape from X chromosome
Researchers at the University of Chicago have discovered there is extensive gene "traffic" on the mammalian X chromosome and overturn a conventional theory about how the genes evolved on the sex chromosome.
The study, published in the Jan. 23, 2004, issue of Science, shows that an excess of genes on the X chromosome "jump" to a non-sex chromosome, or autosome, during germline cell division. This finding contradicts the historic human genome project paper published in Science Feb. 16, 2001, that claimed the X chromosome had an average rate of traffic similar to all autosomes. The discovery also torpedoes the conventional theory that the X chromosome is the hot bed for sex-related genes.
Catherine Gianaro | EurekAlert!
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