UW-Madison scientists find a key to cell division
...e chromosomes failed to separate normally, leaving extra DNA in one of the new cells, as is seen in Down's syndrome, for example, to cells in which the dividing membrane would begin to form normally and would suddenly retract before the cells could separate," Skop says. "Many of the proteins caused a varie...Motion that powers sperm provides key to unravelling rare genetic disorder
...t obvious symptom of BBS is children are born with extra fingers or toes but sufferers go on to dramatically gain weight, lose their eye sight and develop kidney problems. Half of individuals also exhibit some degree of learning difficulties. To date, seven other genes have been linked to BBS, and six of t...Earth, sky tapped in unique global climate change study
...ed that juniper would be able to take advantage of extra rain in the spring, because they are evergreen so they are actively growing before the other species," Tjoelker said. "But we were surprised by the amount of growth response in the four weeks so far," Volder added. "We thought they would respond but...Penguins ingest mollusk shells to obtain calcium for thicker eggshells
...round during penguin fights. But it takes a lot of extra calcium to produce thicker shells, and a penguin can't just run to the corner drugstore to pick up some calcium-rich antacid tablets. New research led by a University of Washington biologist shows that during the period when eggs are being laid, fema...Genome-wide screen reveals new tricks of old genes
.... Another problem is that the copies could undergo extra rearrangements, risking loss of important genes. "If there's no cohesion, the cell will die," says Spencer. "However, if the process sometimes works and sometimes doesn't, some cells survive but their genetic material gets scrambled." It's that so......interest of that transposon to just get rid of the extra DNA, Hahn said. Hahn and Nuzhdin propose an alternative strategy. They suggest designing a transposon that gives an advantage to mosquitoes that already carry genes to block malaria, so that those genes spread through the population by natural select...Gulf marine reserves given new life
... production outside of the reserve boundaries. The extra time provided through the extension in making that determination is critical," Koenig said. Since the reserves' creation four years ago, all bottom fishing has been banned in those areas, although trolling for such migratory species as marlin, sailf...Newborn lambs' central heating system could aid fat busting in humans
...orted to some kind of diet to move those couple of extra stubborn pounds. But by reactivating natural brown fat we could lose weight without even trying. "Each year between two to three million newborn lambs die of hypothermia at cost of up to 100 million to the industry. Farmers have even tried to put qui...Warning to preserve 'unique' red squirrel from extinction
...uld become extinct within the next 20 years unless extra conservation measures are taken, say the authors of a new study. Scientists from the University of Newcastle upon Tyne's School of Biology have found that small number of red squirrels found in Cumbria, North West England, have a unique genetic make...Awards honor Alt's three decades of genetic cancer research
...at gene amplification endows these cells with many extra copies of the gene encoding this enzyme. "At the...ds, and replicating, gene amplification results as extra copies accumulate. New frontiers Alt's more recent work is exploring further mechanisms of geno...Faulty DNA replication linked to neurological diseases
...e as yet unknown event triggers the addition of an extra triplet or two, and the threshold is crossed," Mirkin said. "Once replication stalls, there is no way back." Mirkin hypothesizes that the triggering event might be a switch in orientation, "but the million dollar question is what causes that switch."...Biochemical clues to long lifespan revealed
...or of lifespan: deleting Sir2 limits lifespan, and extra copies lengthen it. Sir2 has a counterpart in mammals, but until now, very little was known about how it worked or what it had to do with aging. Working with mouse cells, researchers led by Anne Brunet, a postdoctoral fellow in neuroscience at Chi...Duke open-air experiment results could deflate hopes that forests can alleviate global warming
...ptimism of those who believe trees can absorb that extra CO2 by growing faster, said a spokesman for the ex... the abilities of loblolly pine forests to use the extra CO2 to produce more tissues as they take in more of the gas, he said. "In a dry year trees naturally...Carbon dioxide fertilization is neither boon nor bust
...s, stems and roots, has been higher in plots given extra carbon dioxide. The average increase has been 24 percent, and there is no indication that the increase will not continue. But, Norby notes, while his colleagues have observed a sustained increase in leaf photosynthesis, the response to carbon dioxide...Goal of ocean 'iron fertilization' said still unproved
... and Earth Sciences. According to the hypothesis, extra carbon dioxide absorbed during photosynthesis woul... contribute to warming Earth's climate by trapping extra amounts of the sun's heat -- something like a greenhouse. The "iron hypothesis" method of scrubbing ...Dyslexics not doomed to life of reading difficulties
...these children's brains can function normally with extra help."...New evidence points to pollution as main cause of much coral reef destruction
...Some had no grazers, others normal numbers, others extra grazers. The group found that the grazers ate significantly more seaweed as the nutrient concentrations in surrounding waters and in the algae increased. Furthermore, they found that the number of grazers in a given cage had little effect on the ove...Natural killer cellers are made, not born
...age the donor's natural killer cells to deliver an extra punch to the cancer and the threatening graft-versus-host disease, the updated logic goes. Mnz and his colleagues did not develop the bone marrow donor match strategy, but part of their aim in understanding where and how natural killers hang out, was...Researchers reveal calcium transport protein function that regulates heartbeat frequency, strength
..."Seeing now that NCX1, in some instances, moves an extra calcium or an extra sodium ion lets us predict much better how this system works in the heart and how it affects the fun...Research news from Tufts University, Friedman School of Nutrition Science and Policy: February 2004
...s, "their genes were against them once they put on extra weight," explained Ordovas. In a recent study published in the journal Obesity Research, Ordovas and his colleagues at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts, examined both obese and non-obese men who were divided into...