Research: Hypermutation in cancer is more frequent in inactive X chromosome

[News]

Every case of cancer originates from changes in a person's genetic material (mutations). These usually occur as "somatic mutations" in individual cells during an individual's lifetime, rather than being inherited from a person's parents.

More... (http://www.news-medical.net/news/20131019/Research-Hypermutation-in-cancer-is-more-frequent-in-inactive-X-chromosome.aspx)