Say what? Bacterial conversation stoppers
...bacteria, essentially fooling the thriving oceanic gang into thinking its members were few, thereby terminating its quorum-sensing behaviors. In a more realistic encounter, Xavier mixed E. coli with V. cholerae, the cholera-causing bacteria that mixes with E. coli in human guts. When cholera bacte...DNA size a crucial factor in genetic mutations, study finds
...e working in a live cell,'' he says. Kool and the gang are now exploring ''the funny finding that the bugs prefer DNA that's larger than natural DNA'' by making larger nucleotides. ''Size and shape are related issues, so we're interested now in keeping the size constant and changing the shape,'' Kool add...University of Minnesota researchers take new look at cellular suicide
...hich must be set in motion before the proteins can gang up on the DNA molecule and seal the cell's fate. The researchers describe their discovery in the July 7 issue of Archives of Internal Medicine. The self-killing of cells is termed apoptosis, and its purposes include not only culling damaged cells bu...