Scientists show how men amp up their X chromosome
PROVIDENCE, R.I. [Brown University] — What makes a man? His clothes? His car? His choice of scotch? The real answer, says Brown University biologist Erica Larschan, is the newly understood activity of a protein complex that, like a genetic power tool, gives enzymes on the X-chromosome an extra boost to increase gene expression. The process is described in the March 3, 2011, issue of the journal Nature.
Women have two X-chromosomes in their genomes while males have an X and a Y. Gender is defined by that difference, but for men to live, the genetic imbalance must be remedied. ...






