As buildings go, the University of Utah's newest - the George and Dolores Eccles Institute of Human Genetics - is a wonder. The 154,000-square-foot building, which was to be dedicated Tuesday afternoon, boasts fresh-air laboratories and a dramatic, twisting staircase that officials say is symbolic of DNA. But the best part about the $28 million structure - constructed with private money - is the research slated to take place inside. The U. has already announced its new, interdisciplinary Human Molecular Biology and Genetics program, which will serve as an umbrella organization for cutting-edge research. Dr. Roger Williams, a leading clinical genetics researcher, says one reason Utah is a Mecca for genetics research is because many local volunteers bring extensive collections of ancestral data to research studies. "The breakthroughs leading to the science of tomorrow will come out of these laboratories," said U. President Chase Peterson.