Model unravels rules that govern how genes are switched on and off
Thursday, December 4, 2008 - 19:31
in Biology & Nature
For years, scientists have struggled to decipher the genetic instruction book that details where and when the 20,000 genes in a human cell will be turned on or off. Different genes operate in each cell type at different times, and this careful orchestration is what ultimately distinguishes a brain cell from a liver or skin cell...
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