ScienceDaily: Top Environment News |
- New exception to a decades-old rule about RNA splicing uncovered
- Ancient history of circumarctic peoples illuminated
- Bioinformatics: We can learn a lot from other species
- Forest diversity from Canada to the sub-tropics influenced by family proximity
- New technique reveals unseen information in DNA code
- RNA modification influences thousands of genes: Revolutionizes understanding of gene expression
- Ancient giant turtle fossil was size of Smart car
- Fighting bacteria’s strength in numbers
- 1,000 years of climate data confirms Australia's warming
- New advice on medication disposal: Trash beats take-back, new study suggests
- Health experts narrow the hunt for Ebola
| New exception to a decades-old rule about RNA splicing uncovered Posted: 17 May 2012 04:31 PM PDT There are always exceptions to a rule, even one that has prevailed for more than three decades, as demonstrated by a new study on RNA splicing, a cellular editing process. The rule-flaunting exception uncovered by the study concerns the way in which a newly produced RNA molecule is cut and pasted at precise locations called splice sites before being translated into protein. |
| Ancient history of circumarctic peoples illuminated Posted: 17 May 2012 04:31 PM PDT Scientists have discovered new information about the migration patterns of the first humans to settle the Americas. The studies identify the historical relationships among various groups of Native American and First Nations peoples and present the first clear evidence of the genetic impact of the groups' cultural practices. |
| Bioinformatics: We can learn a lot from other species Posted: 17 May 2012 04:29 PM PDT Researchers have confirmed the long-held belief that studying the genes we share with other animals is useful. The study shows how bioinformatics makes it possible to test the fundamental principles on which life science is built. |
| Forest diversity from Canada to the sub-tropics influenced by family proximity Posted: 17 May 2012 11:35 AM PDT How species diversity is maintained is a fundamental question in biology. Biologists have shown for the first time that diversity is influenced on a spatial scale of unparalleled scope, in part, by how well tree seedlings survive under their own parents. |
| New technique reveals unseen information in DNA code Posted: 17 May 2012 10:20 AM PDT Scientists have used a new technique to map 5-methylcytosine (5-mC) and 5-hydroxymethylcytosine (5-hmC) in DNA from human and mouse embryonic stem cells, revealing new information about their patterns of distribution. These studies have revealed that these DNA modifications play major roles in fundamental life processes such as cell differentiation, cancer and brain function. |
| RNA modification influences thousands of genes: Revolutionizes understanding of gene expression Posted: 17 May 2012 10:16 AM PDT Over the past decade, research in the field of epigenetics has revealed that chemically modified bases are abundant components of the human genome and has forced us to abandon the notion we've had since high school genetics that DNA consists of only four bases. |
| Ancient giant turtle fossil was size of Smart car Posted: 17 May 2012 10:16 AM PDT Picture a turtle the size of a Smart car, with a shell large enough to double as a kiddie pool. Paleontologists have found just such a specimen -- the fossilized remains of a 60-million-year-old South American giant that lived in what is now Colombia. |
| Fighting bacteria’s strength in numbers Posted: 17 May 2012 08:53 AM PDT Scientists have opened the way for more accurate research into new ways to fight dangerous bacterial infections by proving a long-held theory about how bacteria communicate with each other. |
| 1,000 years of climate data confirms Australia's warming Posted: 17 May 2012 08:14 AM PDT In the first study of its kind in Australasia, scientists have used 27 natural climate records to create the first large-scale temperature reconstruction for the region over the last 1,000 years. |
| New advice on medication disposal: Trash beats take-back, new study suggests Posted: 16 May 2012 12:25 PM PDT Returning extra medicine to the pharmacy for disposal might not be worth the extra time, money or greenhouse gas emissions, according to a study that is the first to look at the net effects of so-called take-back programs. |
| Health experts narrow the hunt for Ebola Posted: 16 May 2012 11:01 AM PDT Response efforts to outbreaks of Ebola hemorrhagic fever in Africa can benefit from a standardized sampling strategy that focuses on the carcasses of gorillas, chimpanzees and other species known to succumb to the virus, according to wildlife health experts. |
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