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发表于:2019-01-20 / 阅读(53) / 评论(0) 分类 2015年Scientific American(六)月

Have you ever said, I know it like the back of my hand? Well, how well do you know the back of your hand? Or the back of your knee? Or behind your ears? Probably not as well as scientists at the National Institutes of Health who just completed a sur

发表于:2019-01-30 / 阅读(113) / 评论(0) 分类 60秒科学

Genome: Now in 3-D! In a study in the journal Science, researchers report the mapping of the three-dimensional structure of the human genome, and the finding that the cell's nucleus is divided into two regions, one where DNA goes to get expressed. Cy

发表于:2019-01-30 / 阅读(131) / 评论(0) 分类 60秒科学

DNA Testing to Help Sharks Keep Fins In a study in the journal Endangered Species Research, shark fins on sale were shown to be from a specific region in which shark populations have collapsed, evidence that may help change fishing regulations. Cynth

发表于:2019-01-30 / 阅读(178) / 评论(0) 分类 60秒科学