2,461 results
2,461 results for: mutations
- Chemistry
Target Practice
As they study the biochemical processes that make Mycobacterium tuberculosis tick, researchers are finding new targets to exploit to combat the microbe.
- Health & Medicine
The Cancer of Dorian Gray
By studying mice that have been engineered to carry mutations in certain tumor-suppressing genes, researchers have identified a link between cancer and aging.
- Anthropology
Evolution’s Mystery Woman
A heated debate has broken out among anthropologists over whether a highly publicized partial skeleton initially attributed to a new, tiny species of human cousins actually comes from a pygmy Homo sapiens with a developmental disorder.
- Humans
Science News of the Year 2006
A review of important scientific achievements reported in Science News during the year 2006.
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19870
This article reviews efforts to explain why certain biological molecules tend to be all right-handed (e.g., sugars) or left-handed (e.g., amino acids). An explanation might lie in the evolution of enzymes involved in their synthesis. For example, the fact that some organisms produce predominantly d-alanine could be explained by random mutations for the opposite enzyme […]
- Math
Möbius at Fermilab
Fermilab’s Wilson Hall. Courtesy of Fermilab. Soaring into the sky like a medieval cathedral, the twin towers of the structure known as Wilson Hall dominate the flat countryside surrounding the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Ill. Named for physicist and accelerator builder Robert Rathbun Wilson (1914-2000), the building celebrates Wilson’s vision and skill, […]
- Health & Medicine
Long-Term Threat
Survivors of a childhood cancer face a sixfold risk of developing a new cancer later in life, compared with people in the general population.
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Faster, Cheaper, Better
Methods now under development could make DNA sequencing quicker and less expensive, paving the way for the day when treatments can be tailored to each person's genetic profile.
- Health & Medicine
Dangerous History
The genome of the TB bacterium has small but significant pockets of diversity, giving scientists new targets for preventing and treating the disease.
- Math
The Power of Being Influenced
Network theory shows that the best way to spread ideas is to focus on people who are influenced rather than the influential.
- Health & Medicine
Berry Colorful Nutrition News (with recipes)
Ah, raspberries. So sweet, so delicate on the tongue, so ephemeral. Oregon Raspberry and Blackberry Commission Isolated pigments from the four raspberries tested. Liu/Cornell Oregon Raspberry and Blackberry Commission Every year, I unsuccessfully defend my raspberries against squirrels, birds, and beetles. As I watch the fruit begin to ripen, so do the neighborhood creatures. Two […]
- Health & Medicine
Honey of a Threat
An all-natural, organic food, honey has a benign–if not wholesome–image. Many people consider it a superior alternative to table sugar and corn syrup–two primary sweeteners in the U.S diet. Though attractive to bees, borage may lace its flowers nectar with toxic chemicals that could then show up in honey. James N. Roitman, USDA-ARS Comfrey, formerly […]
