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Freshman Brian Davis snared the 3000-meter steeplechase with a time of 9:35.6. Harvard swept this event as sophomore Brian Cann nabbed second with a time of 10:05.7 and senior Seth Goldman took third...
...measure this change, the biologists -- Allan Wilson, currently on sabbatical from the University of California, Berkeley; Rebecca Cann, now of the University of Hawaii; and Mark Stoneking, at Berkeley -- examined mtDNA from 147 individuals representing five broad geographic regions. The scientists analyzed the samples by mixing them with restriction enzymes, proteins that cut strands of DNA at specific sites. After comparing the resulting fragments, the scientists used a computer to analyze the differences between the mtDNA samples and construct a "family" tree. Those differences were so small that they could be explained by assuming the existence of one ancestral mtDNA...
...researchers concede some uncertainties: about the mutation rate, for example, and whether it is constant. Still, Stoneking says, the evidence shows that "mtDNA is a good molecule for tracing relationships between populations in general." And, adds Cann, "it is a way of welding molecular biology and anthropology. Sometimes fossils are misleading. We're trying to build better pictures of how humans evolved...
Other Harvard entrants following Gompers were Mike Curtis (36th place, 25:47.1), John Lewis (44th, 25:57.8), Brian Cann (45th, 25:59.4), and Mike Spence (64th...
...Gompers] going to win Heps," Cann stated confidently, "and he has a pretty good chance at nationals. There's nobody that he can't beat...