Ring chromosome

A ring chromosome is an aberrant chromosome whose ends have fused together to form a ring. Ring chromosomes were first observed in Drosphila by Lilian Vaughan Morgan in 1926 and in maize by Barbara McClintock in 1931. A ring chromosome is denoted by the symbol r in human genetics and R in Drosophila genetics. Ring chromosomes may form in cells following genetic damage by mutagens like radiation, but they may also arise spontaneously during development.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.