http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. All cells perform certain basic functions. Each must selectively transcribe parts of the DNA that makes up its genome into RNAs that specify the structure of proteins. The set of proteins synthesized by a cell in turn determines its structure and behaviour, and enables it to survive and reproduce. So it is crucial that the appropriate stretches of DNA are transcribed in each cell type. http://www.physorg.com/news174302430.html Biology Fri, 09 Oct 2009 10:30:02 EST news174302430 (PhysOrg.com) -- The body's nanomachines that read our genes don't run as smoothly as previously thought, according to a new study by University of California, Berkeley, scientists. http://www.physorg.com/news168182853.html Chemistry Thu, 30 Jul 2009 14:29:22 EST news168182853 For many years scientists have known that the numerous biological functions of an organism are not regulated solely by the DNA sequence of its genes: Superordinate regulatory mechanisms exist that contribute to determining the fate of genes. Although they are not anchored in the DNA, they can even be passed on to subsequent generations to a certain extent. Intensive research in recent years has shown that these mechanisms - bundled under the term epigenetics, are very multifaceted and complex. http://www.physorg.com/news164376644.html Biology Tue, 16 Jun 2009 13:11:00 EST news164376644 (PhysOrg.com) -- Cornell researchers have uncovered surprising new information about the process by which genes are unwrapped and exposed so that they can be expressed. http://www.physorg.com/news135269659.html Biology Mon, 14 Jul 2008 15:54:19 EST news135269659