Traditionally, biologists have assumed that RNA doesn't directly do useful or harmful things - it simply sits there carrying information and being read by cellular machinery. (en.hdbuzz.net)
Using new technologies for labeling cellular machinery with light - activated fluorescent markers, they could «turn on» just one molecule at a time. (science.sciencemag.org)
Because of the pigment's ability to absorb UV light, the researchers believe that its function is to protect the delicate DNA and cellular machinery inside the developing bug. (sciencemag.org)