The secret love life of plants
...ed there, the single sperm cell of the cdc2 pollen merges only with the egg cell and not with the central cell. This shows a hierarchy, never before discovered, in the fertilisation process of Arabidopsis. The scientists made another astounding observation: although the central cell remained unfertilised, ...Novel molecular 'signature' marks DNA of embryonic stem cells
... domains, which has not been previously described, merges two opposing influences ?one that activates genes and another that represses them. When combined in this way, the negative influence seems to prevail and, as a result, the genes positioned near bivalent domains are silenced. However, the activating i...Georgia Tech accelerates drug discovery with new IBM supercomputing cluster
...h, the new Center for the Study of Systems Biology merges Dr.Skolnick's biomedical research expertise with IBM's high-performance computing capabilities to create a brand new supercomputer. The new supercomputing cluster running Linux will be among the fastest in the world, and one of the most powerful amon...Protein found to shield pancreatic cancer cells from self-destruction
... cell organ, or organelle. This autophagosome then merges with a digestive organelle called a lysosome and everything inside is consumed, leaving the vacuole and a residue of digested material. If enough of this happens, the cell dies. Gabriel Lopez-Berestein, M.D., professor of experimental therapeutics...