Word: bacterias
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Dates: during 1990-1999
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...years, no question has stirred the imagination of more evolutionary experts, spawned more novel theories or spurred more far-flung expeditions. Life has occupied the planet for nearly 4 billion of its 4.5 billion years. But until about 600 million years ago, there were no organisms more complex than bacteria, multicelled algae and single-celled plankton. The first hint of biological ferment was a plethora of mysterious palm-shape, frondlike creatures that vanished as inexplicably as they appeared. Then, 543 million years ago, in the early Cambrian, within the span of no more than 10 million years, creatures with teeth...
...fellow at Harvard, Ptashne rose to fame after isolating the repressor of lambda phage virus. The lambda virus is able to remain dormant in E. coli bacteria because its repressor binds to the viral DNA, preventing the expression of the genes necessary for viral replication...
...Republican initiatives which was defeated was an attempt to bar FDA meat inspectors from scientifically inspecting meat for E. Coli and other bacteria, viruses and vermin. Until now, FDA inspectors were only permitted to inspect meat visually. Each year, thousands of people die from eating contaminated meat, and many more become ill. Yet the Republicans sided with the meat industry, which see the new regulations only as a serious meat to profits...
...Wurtman says, a Japanese company made a new bacteria to synthesize tryptophan, but the bacteria also produced a new toxin. Thus, when the drug was sold in health food stores about a month later, 45 people were killed by a disease caused by the new toxin...
...part of the exhibit, living bacteria with the riddle encoded in their DNA will be on display...