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Mobile elements, bits of DNA popularly called 'jumping' genes, have been maligned as only 'junk' or 'selfish' genes. However, transposable elements occasionally play a useful role in evolution, including human evolution, says UA's Margaret G. Kidwell.
Scientists have 'shotgun' sequenced the whole genome of the geneticists' darling - the fruit fly. It will dramatically change the way many scientists study insects. And it bodes well for the on-going effort to sequence the human genome.
UA planetary scientist Richard Greenberg says he'd bet there's life on Europa, an ice-covered moon of Jupiter that almost certainly has a global ocean.
Robert L. Roth, resident director of the Maricopa and Citrus Agricultural Centers and professor of biosystems engineering at the University of Arizona's College of Agriculture is this year's recipient of the Arizona Agriculture "100" Council's Faculty Member of the Year Award.
Scientists studying the sun's influence on changing climate will talk about their research priorities as they wrap up their meeting in Tucson tomorrow.
Galileo scientists will release new images of Io and Europa on Monday. They also will celebrate milestones for their project and for future outer space exploration.
Irene Pepperberg, known internationally for her research on how Grey parrots comprehend and learn language, is winner of two prestigious fellowships.
Very dry conditions in the southeastern and southwestern United States have prompted fire managers and climate experts to join forces in planning for the upcoming wildfire season.
A third of Earth's continental land masses is arid or semiarid. What happens to water supplies in these regions is going to have a big impact on political stability, environmental quality and the quality of life for millions of people, UA Regents Professor Soroosh Sorooshian emphasizes at the AAAS meeting in Washington, D.C.
UA Professor Terry Bahill has used numbers, graphs and mathematical analysis to study some of baseball's more intriguing questions -- and reveal some of its more persistant myths.
