Revealing a missing link
Friday, November 12, 2010 - 11:30
in Biology & Nature
When it comes to genes, its definitely possible to have too much of a good thing. Accordingly, mammalian females have a mechanism that randomly inactivates one of the two X sex chromosomes within each somatic cell nucleus, ensuring that X-linked genes are represented to the same extent as in their single-X-bearing male counterparts.