Physicist cracks women's random but always lucky choice of X chromosome
...ly one of these two nascent protein plugs narrowly wins that race and reaches an energy state in which it can pull together all the material building up in both plugs into a single protein plug. That single plug then closes off one of the XIST suicide genes allowing its host X chromosome to continue to op...Shorter colds, milder flu may follow from newly revealed immune mechanism
...thways can determine whether the virus or the host wins the battle." Next, the researchers will look further at precisely how CCL5 prevents cell death. "In this initial study, we identified the cellular receptor for CCLR and some of the first downstream signals that convey a survival message," Holtzman ...