Word: two
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Dates: during 1960-1969
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...since the two types of viral DNA were not oriented in complementary pairs, the viral DNA remained as loose, single strands...
...only reason the news was released to the press was to emphasize its negative aspects," said Lawrence Eron, a third-year medical school student. Eron, Beckwith, and James Shapiro, a post-doctoral fellow at the Medical School, carried out the experiment during two months of last summer...
...extract this gene, the scientists took advantage of the fact that when a virus infects a bacterium it sometimes removes a piece of the bacterium's DNA. They infected E. coli with two types of viruses that were specifically bred to remove the lactose gene from E. coli...
...these viruses is arranged in two, loosely linked strands, with one molecular strand containing the chemical complement of the other. These long molecules are ordinarily coiled around each other in the head of a virus particle once it leaves the host cell...
...CRIMSON was penalized 15 yards at the outset, for suspicion of possession of narcotics. Aided by a two-yard gain and three consecutive 15-yard penalties, the fighting Niemans drove 47 yards. The first penalty against the CRIMSON was for impudence: the second came when officials called the entire CRIMSON line for unnecessary effeteness; on the third play, the CRIMSON linebacker was called for snobbery...