Word: geneses
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Most of these new approaches still need to be more fully tested before they can be widely adopted. Some of them will undoubtedly fail. The ultimate prize, which could be available within the next 10 to 15 years, would be a diagnostic test that determines which genes in a particular...
One of the inventors of the gene gun thinks that shooting viral DNA could someday replace traditional vaccines. Dr. Stephen Johnston, director of the Center for Biomedical Inventions at the University of Texas Southwestern Medical Center in Dallas, is using medicine's newfound skill at sequencing genomes to figure out...
Or has it? While enrofloxacin kills the type of bacteria that sickened the chickens, it doesn't quite eliminate a different strain, called Campylobacter, that lives in the intestine. The surviving germs, which don't cause any poultry diseases, quickly multiply and spread the genes that helped them fend off...
The problem is that bacteria share genetic information much more readily than anyone thought. Individual cells--often from different species--routinely exchange tiny loops of DNA called plasmids. They will even pick up snippets of DNA from dead bacteria or viruses. Once a strain of bacteria survives destruction by antibiotics...
Genes certainly contribute, but there's much that parents can do to influence the way their children eat and to lower the chances they will end up obese. Young children are keenly attuned to how many calories they need to grow and maintain a normal weight; they know when they...